TWP/AERI/C2 - Hatch Failure

The AERI hatch failed 3/1/02 and the hatch was covered with
plastic to keep the rain out.  The data collected while the
hatch was covered with plastic may appear to be okay, but 
should not be used for scientific study.  The plastic totally
invalidates the AERI data calibrations.

• Sun sensor analog output: The sun sensor has a view angle to the sky slightly
  larger than the interferometer FOV and is aligned to the interferometer
  line-of-sight. I(sunSensorIntensity)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENEstimateNo2Ch2)
• Version number of Operational Software(systemReleaseNumber)
• Logical flag indicating whether longwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using LWskyNEN and
  LWskyNENlimit.(LWskyNENacceptable)
• Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
• AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENEstimateNo1Ch2)
• AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENEstimateNo1Ch1)
• Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
• Logical flag indicating whether HBB temperature is stable (true) or not stable
  (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
• Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
• AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENEstimateNo2Ch1)
• Shortwave surface air brightness temperature from radiance average (2295_2300
  cm-1)(surfaceLayerAirTemp2295_2300)
• Difference between actual and ideal motor encoder values for current view
  indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
• Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
• AERI instrument data channel number(channelNumber)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• The noise equivalent radiance observed in the shortwave channel during a sky
  view at 2500 cm-1(SWskyNEN)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
• Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
• Time (HHMMSS)(timeHHMMSS)
• AERI SW Scene Variability Spectral Averages (Ch2)(SkyUniformityCh2)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
• Longwave elevated air brightness temperature from radiance average (700_705
  cm-1)(elevatedLayerAirTemp700_705)
• Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Shortwave elevated air brightness temperature from radiance average (2282_2287
  cm-1)(elevatedLayerAirTemp2282_2287)
• AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectraAveragesCh1)
• Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
• AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENestimateNo1Ch2)
• Wave number in reciprocal centimeters(wnumsum1)
• AERI LW Scene Variability Spectral Averages (Ch1)(SkyVariabilityAveragesCh1)
• AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENestimateNo2Ch1)
• Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
• Wave number in reciprocal centimeters(wnumsum2)
• Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
• AERI SW Scene Brightness Temp Spectral Averages (Ch2)(SkyBrightnessTempSpectralAveragesCh2)
• Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
• Ambient air temperature at hatch opening(outsideAirTemp)
• AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENestimateNo2Ch2)
• Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
• Wave number in reciprocal centimeters(wnumsum3)
• Wave number in reciprocal centimeters(wnumsum6)
• Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
• AERI LW Scene Brightness Temp Spectral Averages (Ch1)(SkyBrightnessTempSpectralAveragesCh1)
• AERI SW Scene Variability Spectral Averages (Ch2)(SkyVariabilityAveragesCh2)
• AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectralAveragesCh1)
• Wave number in reciprocal centimeters(wnumsum7)
• Duration of scene view(sceneViewDuration)
• Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
  indicative of front end air flow.(frontEndFanAirTempDiff)
• Wave number in reciprocal centimeters(wnumsum10)
• AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectralAveragesCh2)
• AERI LW Scene Variability Spectral Averages (Ch1)(SkyUniformityCh1)
• Wave number in reciprocal centimeters(wnumsum5)
• Wave number in reciprocal centimeters(wnumsum4)
• AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
• AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENestimateNo1Ch1)
• Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
• The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
  centered on the sky view(HBBtempDrift)
• Wave number in reciprocal centimeters(wnumsum12)
• Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
• Wave number in reciprocal centimeters(wnumsum13)
• Characteristic value representing overall longwave channel responsivity(LWresponsivity)
• AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectraAveragesCh2)
• AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectralAveragesCh2)
• Wave number in reciprocal centimeters(wnumsum14)
• Logical flag indicating whether shortwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using SWskyNEN and
  SWskyNENlimit.(SWskyNENacceptable)
• AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENCh2)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
• xxx(dataAvailable)
• AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectraAveragesCh1)
• AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENCh1)
• Wave number in reciprocal centimeters(wnumsum9)
• Wave number in reciprocal centimeters(wnumsum8)
• The noise equivalent radiance observed in the longwave channel during a sky view
  at 1000 cm-1(LWskyNEN)
• Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
• Rain sensor analog output: the rain sensor is located inside the hatch near the
  sky aperture and is used to flag the critical condition of rain falling on
  the AERI s(rainSensorIntensity)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Wave number in reciprocal centimeters(wnumsum11)
• AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectraAveragesCh2)
• Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
• Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)

• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• wavenumbers for standard deviation of radiance spectra(wnum2)
• AERI instrument unit serial number(AERIunitNumber)
• Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Character string containing instrument name(instrumentUnitNumber)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Mean of radiance spectra ensemble(mean_rad)
• Duration of scene view(sceneViewDuration)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• AERI instrument data channel number(channelNumber)
• Version number of Operational Software(systemReleaseNumber)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)

• null(Raw data stream - documentation not supported)

• Weight factor for bottom used in calculating ambient blackbody temperature
  average(ABBbottomTempWeight)
• xxx(dataAvailable)
• Stirling cooler power supply temperature measured at power supply frame(coolerPowerSupplyTemp)
• Ambient blackbody temperature - apex(ABBapexTemp)
• Longwave elevated air brightness temperature from radiance average (700_705
  cm-1)(elevatedLayerAirTemp700_705)
• Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
• Imaginary radiance during sky view averaged over (675_680 cm-1)(skyViewImaginaryRadiance675_680)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
• Scene mirror motor driver heat sink temperature(motorDriverTemp)
• Radiance standard deviation during ambient blackbody view averaged over
  (2282_2287 cm-1)(ABBviewStdDevRadiance2282_2287)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Shortwave surface air brightness temperature from radiance average (2295_2300
  cm-1)(surfaceLayerAirTemp2295_2300)
• Factor used to convert single-scan noise to two-minute equivalent(twoMinuteNoiseEstimateFactor)
• Interferometer window temperature measured on the outside of the aluminum window
  flange(interferometerWindowTemp)
• Ambient air temperature near blackbodies(airNearBBsTemp)
• Motor step value given to motor controller to achieve proper mirror positioning(sceneMirrorMotorStep)
• Original laser wavenumber assumed for this instrument(originalLaserWavenumber)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Ambient blackbody temperature - rim top(ABBtopTemp)
• Stirling cooler compressor temperature measured at compressor heatsink(coolerCompressorTemp)
• Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
• Radiance standard deviation during ambient blackbody view averaged over (675_680
  cm-1)(ABBviewStdDevRadiance675_680)
• Resistive temperature of 2500 Ohm fixed resistor - banana plug mounted(fixed2500ohmResistor)
• Imaginary radiance during sky view averaged over (700_705 cm-1)(skyViewImaginaryRadiance700_705)
• Blackbody controller Unit 1 power supply temperature(BBcontroller1temp)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• Relative humidity measured in the optics compartment atop the interferometer.(opticsCompartmentRelativeHumidity)
• Field of view half angle used in finite FOV correction(FFOVhalfAngle)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
• Stirling cycle cooler current(coolerCurrent)
• Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
• Weight factor for apex used in calculating ambient blackbody temperature average(ABBapexTempWeight)
• Scene mirror temperature as measured at the center of the back of the mirror(sceneMirrorTemp)
• Radiance standard deviation during hot blackbody view averaged over (675_680
  cm-1)(HBBviewStdDevRadiance675_680)
• Radiance standard deviation during hot blackbody view averaged over (700_705
  cm-1)(HBBviewStdDevRadiance700_705)
• AERI instrument data channel number(channelNumber)
• Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
• Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
• Detector temperature sensed via diode near detector(detectorTemp)
• Duration of scene view(sceneViewDuration)
• The noise equivalent radiance observed in the shortwave channel during a sky
  view at 2500 cm-1(SWskyNEN)
• Scene mirror position encoder value(sceneMirPosEncoder)
• Radiance standard deviation during hot blackbody view averaged over (2282_2287
  cm-1)(HBBviewStdDevRadiance2282_2287)
• Version number of Operational Software(systemReleaseNumber)
• Size of buffer holding expanded spectrum before interpolation(expandedInterferogramSize)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Imaginary radiance during sky view averaged over (2295_2300 cm-1)(skyViewImaginaryRadiance2295_2300)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Logical flag indicating whether HBB temperature is stable (true) or not stable
  (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
• Weight factor for bottom used in calculating hot blackbody temperature average(HBBbottomTempWeight)
• Imaginary radiance during sky view averaged over (2510_2515 cm-1)(skyViewImaginaryRadiance2510_2515)
• Radiance standard deviation during ambient blackbody view averaged over
  (2295_2300 cm-1)(ABBviewStdDevRadiance2295_2300)
• Limit applied to LWskyNEN in determination of LWskyNENacceptable(LWskyNENlimit)
• Weight factor for apex used in calculating hot blackbody temperature average(HBBapexTempWeight)
• Blackbody cavity geometry factor(BBcavityFactor)
• Resistive temperature of 12 Kohm fixed resistor located in SCE-P3 shell(fixed12KohmResistor)
• Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
• Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
• Shortwave elevated air brightness temperature from radiance average (2282_2287
  cm-1)(elevatedLayerAirTemp2282_2287)
• AERI ingest computer temperature measured at back panel of computer(computerTemp)
• Sun sensor analog output: The sun sensor has a view angle to the sky slightly
  larger than the interferometer FOV and is aligned to the interferometer
  line-of-sight. I(sunSensorIntensity)
• Logical flag indicating whether longwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using LWskyNEN and
  LWskyNENlimit.(LWskyNENacceptable)
• Stirling cycle cooler expander temperature(coolerExpanderTemp)
• Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
• Corrective offset for final ambient blackbody average temperature(ABBtempOffset)
• Radiance standard deviation during hot blackbody view averaged over (2510_2515
  cm-1)(HBBviewStdDevRadiance2510_2515)
• Ambient blackbody temperature(ABBbottomTemp)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Number of terms used in finite field of view correction(numberOfTerms)
• Corrective offset for final hot blackbody average temperature(HBBtempOffset)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Logical flag indicating whether shortwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using SWskyNEN and
  SWskyNENlimit.(SWskyNENacceptable)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
• Imaginary radiance during sky view averaged over (2282_2287 cm-1)(skyViewImaginaryRadiance2282_2287)
• Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
• Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
• Hot blackbody temperature - apex(HBBapexTemp)
• Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
• Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
• Spare temperature sensor (location TBD)(spareTemp)
• Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
• Radiance standard deviation during ambient blackbody view averaged over
  (2510_2515 cm-1)(ABBviewStdDevRadiance2510_2515)
• Interferometer front end fan airflow unheated temperature: used with heated
  temperature as measure of airflow.(frontEndFanAirUnheatedTemp)
• Rain sensor analog output: the rain sensor is located inside the hatch near the
  sky aperture and is used to flag the critical condition of rain falling on
  the AERI s(rainSensorIntensity)
• Weight factor for top used in calculating ambient blackbody temperature average(ABBtopTempWeight)
• Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
• Resistive temperature of 97 Kohm fixed resistor located in SCE-P4 shell(fixed97KohmResistor)
• Hot blackbody temperature - rim bottom(HBBbottomTemp)
• The noise equivalent radiance observed in the longwave channel during a sky view
  at 1000 cm-1(LWskyNEN)
• Weight factor for top used in calculating hot blackbody temperature average(HBBtopTempWeight)
• Hot blackbody temperature - rim top(HBBtopTemp)
• Number of views in a sequence(sceneMirPosCount)
• Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
• Size of buffer holding initial spectrum(originalInterferogramSize)
• Ambient air temperature near the interferometer(airNearInterferometerTemp)
• Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
• Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
• The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
  centered on the sky view(HBBtempDrift)
• Radiance standard deviation during hot blackbody view averaged over (2295_2300
  cm-1)(HBBviewStdDevRadiance2295_2300)
• Radiance standard deviation during hot blackbody view averaged over (985_990
  cm-1)(HBBviewStdDevRadiance985_990)
• Instrument scene mirror position identifier(sceneMirrorPosition)
• Radiance standard deviation during ambient blackbody view averaged over (985_990
  cm-1)(ABBviewStdDevRadiance985_990)
• Laser wavenumber used in definition of output wavenumber scale(outputLaserWavenumber)
• Limit applied to SWskyNEN in determination of SWskyNENacceptable(SWskyNENlimit)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• Blackbody controller Unit 2 power supply temperature(BBcontroller2temp)
• Radiance standard deviation during ambient blackbody view averaged over (700_705
  cm-1)(ABBviewStdDevRadiance700_705)
• Signal conditioning electronics inside air temperature(SCEtemp)
• Imaginary radiance during sky view averaged over (985_990 cm-1)(skyViewImaginaryRadiance985_990)
• Relative Humidity measured in the Interferometer Enclosure(interferometerEnclosureRelativeHumidity)
• Interferometer front end fan airflow heated temperature: used with unheated
  temperature as measure of airflow.(frontEndFanAirHeatedTemp)
• Limit applied to HBBtempDrift in determination of HBBstable flag(HBBtempDriftLimit)
• Scene mirror motor case temperature(mirrorMotorTemp)
• AERI interferometer temperature at second port(interferometerSecondPortTemp)
• Electronics rack ambient temperature measured at inside top of rack(rackAmbientTemp)
• Characteristic value representing overall longwave channel responsivity(LWresponsivity)
• Number of complete (forward+backward) interferogram scans in sample average(coadditionsCount)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
  indicative of front end air flow.(frontEndFanAirTempDiff)
• Difference between actual and ideal motor encoder values for current view
  indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
• Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)

• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Wave number(wnum)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Duration of scene view(sceneViewDuration)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Mean of radiance spectra ensemble(mean_rad)
• Observation longitude(Longitude)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• wavenumbers for standard deviation of radiance spectra(wnum2)
• AERI instrument data channel number(channelNumber)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Character string containing instrument name(instrumentUnitNumber)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• AERI instrument unit serial number(AERIunitNumber)

TWP/C2  Installation

The Nauru ARCS was installed during the period September-November
1998.  Data were being collected by the end of October, but for the
first several weeks of November, the site was undergoing considerable
change, so data from that period should be used with caution.  The
official site dedication occured on November 20.  Most on-site
activity ended following the dedication so we will consider November
20 to be the beginning of the Nauru operations.  The last members of
the installation team left Nauru on November 24.

• Sun sensor analog output: The sun sensor has a view angle to the sky slightly
  larger than the interferometer FOV and is aligned to the interferometer
  line-of-sight. I(sunSensorIntensity)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENEstimateNo2Ch2)
• Version number of Operational Software(systemReleaseNumber)
• Logical flag indicating whether longwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using LWskyNEN and
  LWskyNENlimit.(LWskyNENacceptable)
• Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
• AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENEstimateNo1Ch2)
• AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENEstimateNo1Ch1)
• Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
• Logical flag indicating whether HBB temperature is stable (true) or not stable
  (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
• Time at center of AERI sky observation period(Time)
• Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
• AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENEstimateNo2Ch1)
• Shortwave surface air brightness temperature from radiance average (2295_2300
  cm-1)(surfaceLayerAirTemp2295_2300)
• Difference between actual and ideal motor encoder values for current view
  indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
• base time(base_time)
• Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
• AERI instrument data channel number(channelNumber)
• AERI instrument unit serial number(AERIunitNumber)
• lat(lat)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• lon(lon)
• The noise equivalent radiance observed in the shortwave channel during a sky
  view at 2500 cm-1(SWskyNEN)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
• Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
• Time (HHMMSS)(timeHHMMSS)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Time offset of tweaks from base_time(time_offset)
• Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
• Longwave elevated air brightness temperature from radiance average (700_705
  cm-1)(elevatedLayerAirTemp700_705)
• Observation Altitude(Altitude)
• Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
• Character string containing instrument name(instrumentUnitNumber)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Shortwave elevated air brightness temperature from radiance average (2282_2287
  cm-1)(elevatedLayerAirTemp2282_2287)
• Julian Day including day and fraction of day(JulianDay)
• AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectraAveragesCh1)
• Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
• Wave number in reciprocal centimeters(wnumsum1)
• AERI LW Scene Variability Spectral Averages (Ch1)(SkyVariabilityAveragesCh1)
• Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
• Wave number in reciprocal centimeters(wnumsum2)
• Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
• AERI SW Scene Brightness Temp Spectral Averages (Ch2)(SkyBrightnessTempSpectralAveragesCh2)
• Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Observation date(dateYYMMDD)
• Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
• Wave number in reciprocal centimeters(wnumsum3)
• Wave number in reciprocal centimeters(wnumsum6)
• Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
• AERI LW Scene Brightness Temp Spectral Averages (Ch1)(SkyBrightnessTempSpectralAveragesCh1)
• AERI SW Scene Variability Spectral Averages (Ch2)(SkyVariabilityAveragesCh2)
• Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
  indicative of front end air flow.(frontEndFanAirTempDiff)
• Wave number in reciprocal centimeters(wnumsum7)
• Duration of scene view(sceneViewDuration)
• Wave number in reciprocal centimeters(wnumsum10)
• Wave number in reciprocal centimeters(wnumsum5)
• Wave number in reciprocal centimeters(wnumsum4)
• Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
• The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
  centered on the sky view(HBBtempDrift)
• Dummy altitude for Zeb(alt)
• Wave number in reciprocal centimeters(wnumsum12)
• Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
• Wave number in reciprocal centimeters(wnumsum13)
• Characteristic value representing overall longwave channel responsivity(LWresponsivity)
• AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectraAveragesCh2)
• Wave number in reciprocal centimeters(wnumsum14)
• Logical flag indicating whether shortwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using SWskyNEN and
  SWskyNENlimit.(SWskyNENacceptable)
• AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENCh2)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
• xxx(dataAvailable)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectraAveragesCh1)
• AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENCh1)
• Wave number in reciprocal centimeters(wnumsum9)
• Wave number in reciprocal centimeters(wnumsum8)
• The noise equivalent radiance observed in the longwave channel during a sky view
  at 1000 cm-1(LWskyNEN)
• Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
• Rain sensor analog output: the rain sensor is located inside the hatch near the
  sky aperture and is used to flag the critical condition of rain falling on
  the AERI s(rainSensorIntensity)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Wave number in reciprocal centimeters(wnumsum11)
• AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectraAveragesCh2)
• Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Observation longitude(Longitude)
• Observation latitude(Latitude)
• Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)

• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• Dummy altitude for Zeb(alt)
• Wave number(wnum)
• wavenumbers for standard deviation of radiance spectra(wnum2)
• AERI instrument unit serial number(AERIunitNumber)
• Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
• Time offset of tweaks from base_time(time_offset)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Character string containing instrument name(instrumentUnitNumber)
• Time (HHMMSS)(timeHHMMSS)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Observation Altitude(Altitude)
• base time(base_time)
• lon(lon)
• Mean of radiance spectra ensemble(mean_rad)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Duration of scene view(sceneViewDuration)
• Observation date(dateYYMMDD)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Observation latitude(Latitude)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Time at center of AERI sky observation period(Time)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• AERI instrument data channel number(channelNumber)
• Observation longitude(Longitude)
• lat(lat)
• Julian Day including day and fraction of day(JulianDay)
• Version number of Operational Software(systemReleaseNumber)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)

• null(Raw data stream - documentation not supported)

• Weight factor for bottom used in calculating ambient blackbody temperature
  average(ABBbottomTempWeight)
• Character string containing instrument name(instrumentUnitNumber)
• xxx(dataAvailable)
• Stirling cooler power supply temperature measured at power supply frame(coolerPowerSupplyTemp)
• Ambient blackbody temperature - apex(ABBapexTemp)
• Longwave elevated air brightness temperature from radiance average (700_705
  cm-1)(elevatedLayerAirTemp700_705)
• Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
• Imaginary radiance during sky view averaged over (675_680 cm-1)(skyViewImaginaryRadiance675_680)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
• AERI instrument unit serial number(AERIunitNumber)
• Scene mirror motor driver heat sink temperature(motorDriverTemp)
• Radiance standard deviation during ambient blackbody view averaged over
  (2282_2287 cm-1)(ABBviewStdDevRadiance2282_2287)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Shortwave surface air brightness temperature from radiance average (2295_2300
  cm-1)(surfaceLayerAirTemp2295_2300)
• Factor used to convert single-scan noise to two-minute equivalent(twoMinuteNoiseEstimateFactor)
• Interferometer window temperature measured on the outside of the aluminum window
  flange(interferometerWindowTemp)
• Ambient air temperature near blackbodies(airNearBBsTemp)
• Motor step value given to motor controller to achieve proper mirror positioning(sceneMirrorMotorStep)
• Original laser wavenumber assumed for this instrument(originalLaserWavenumber)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Ambient blackbody temperature - rim top(ABBtopTemp)
• Stirling cooler compressor temperature measured at compressor heatsink(coolerCompressorTemp)
• Observation latitude(Latitude)
• Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
• Radiance standard deviation during ambient blackbody view averaged over (675_680
  cm-1)(ABBviewStdDevRadiance675_680)
• Resistive temperature of 2500 Ohm fixed resistor - banana plug mounted(fixed2500ohmResistor)
• Imaginary radiance during sky view averaged over (700_705 cm-1)(skyViewImaginaryRadiance700_705)
• Blackbody controller Unit 1 power supply temperature(BBcontroller1temp)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• Relative humidity measured in the optics compartment atop the interferometer.(opticsCompartmentRelativeHumidity)
• Time offset of tweaks from base_time(time_offset)
• Field of view half angle used in finite FOV correction(FFOVhalfAngle)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
• Stirling cycle cooler current(coolerCurrent)
• Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
• Weight factor for apex used in calculating ambient blackbody temperature average(ABBapexTempWeight)
• Observation Altitude(Altitude)
• Scene mirror temperature as measured at the center of the back of the mirror(sceneMirrorTemp)
• Radiance standard deviation during hot blackbody view averaged over (675_680
  cm-1)(HBBviewStdDevRadiance675_680)
• Radiance standard deviation during hot blackbody view averaged over (700_705
  cm-1)(HBBviewStdDevRadiance700_705)
• AERI instrument data channel number(channelNumber)
• Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
• Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
• Detector temperature sensed via diode near detector(detectorTemp)
• Duration of scene view(sceneViewDuration)
• The noise equivalent radiance observed in the shortwave channel during a sky
  view at 2500 cm-1(SWskyNEN)
• Scene mirror position encoder value(sceneMirPosEncoder)
• Radiance standard deviation during hot blackbody view averaged over (2282_2287
  cm-1)(HBBviewStdDevRadiance2282_2287)
• Size of buffer holding expanded spectrum before interpolation(expandedInterferogramSize)
• Version number of Operational Software(systemReleaseNumber)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Imaginary radiance during sky view averaged over (2295_2300 cm-1)(skyViewImaginaryRadiance2295_2300)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Logical flag indicating whether HBB temperature is stable (true) or not stable
  (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
• Weight factor for bottom used in calculating hot blackbody temperature average(HBBbottomTempWeight)
• Imaginary radiance during sky view averaged over (2510_2515 cm-1)(skyViewImaginaryRadiance2510_2515)
• Radiance standard deviation during ambient blackbody view averaged over
  (2295_2300 cm-1)(ABBviewStdDevRadiance2295_2300)
• Limit applied to LWskyNEN in determination of LWskyNENacceptable(LWskyNENlimit)
• Weight factor for apex used in calculating hot blackbody temperature average(HBBapexTempWeight)
• Blackbody cavity geometry factor(BBcavityFactor)
• Resistive temperature of 12 Kohm fixed resistor located in SCE-P3 shell(fixed12KohmResistor)
• Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
• Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
• Shortwave elevated air brightness temperature from radiance average (2282_2287
  cm-1)(elevatedLayerAirTemp2282_2287)
• AERI ingest computer temperature measured at back panel of computer(computerTemp)
• Observation longitude(Longitude)
• Sun sensor analog output: The sun sensor has a view angle to the sky slightly
  larger than the interferometer FOV and is aligned to the interferometer
  line-of-sight. I(sunSensorIntensity)
• Logical flag indicating whether longwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using LWskyNEN and
  LWskyNENlimit.(LWskyNENacceptable)
• Stirling cycle cooler expander temperature(coolerExpanderTemp)
• Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
• Corrective offset for final ambient blackbody average temperature(ABBtempOffset)
• Radiance standard deviation during hot blackbody view averaged over (2510_2515
  cm-1)(HBBviewStdDevRadiance2510_2515)
• Ambient blackbody temperature(ABBbottomTemp)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Number of terms used in finite field of view correction(numberOfTerms)
• Observation date(dateYYMMDD)
• Corrective offset for final hot blackbody average temperature(HBBtempOffset)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Logical flag indicating whether shortwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using SWskyNEN and
  SWskyNENlimit.(SWskyNENacceptable)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
• Imaginary radiance during sky view averaged over (2282_2287 cm-1)(skyViewImaginaryRadiance2282_2287)
• Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
• Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
• Hot blackbody temperature - apex(HBBapexTemp)
• Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
• Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
• Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
• Spare temperature sensor (location TBD)(spareTemp)
• Radiance standard deviation during ambient blackbody view averaged over
  (2510_2515 cm-1)(ABBviewStdDevRadiance2510_2515)
• Time (HHMMSS)(timeHHMMSS)
• Interferometer front end fan airflow unheated temperature: used with heated
  temperature as measure of airflow.(frontEndFanAirUnheatedTemp)
• Rain sensor analog output: the rain sensor is located inside the hatch near the
  sky aperture and is used to flag the critical condition of rain falling on
  the AERI s(rainSensorIntensity)
• Julian Day including day and fraction of day(JulianDay)
• Time at center of AERI sky observation period(Time)
• Weight factor for top used in calculating ambient blackbody temperature average(ABBtopTempWeight)
• Resistive temperature of 97 Kohm fixed resistor located in SCE-P4 shell(fixed97KohmResistor)
• Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
• base time(base_time)
• Dummy altitude for Zeb(alt)
• Hot blackbody temperature - rim bottom(HBBbottomTemp)
• The noise equivalent radiance observed in the longwave channel during a sky view
  at 1000 cm-1(LWskyNEN)
• Weight factor for top used in calculating hot blackbody temperature average(HBBtopTempWeight)
• Hot blackbody temperature - rim top(HBBtopTemp)
• Number of views in a sequence(sceneMirPosCount)
• Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
• Size of buffer holding initial spectrum(originalInterferogramSize)
• Ambient air temperature near the interferometer(airNearInterferometerTemp)
• Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
• Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
• lon(lon)
• The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
  centered on the sky view(HBBtempDrift)
• Radiance standard deviation during hot blackbody view averaged over (2295_2300
  cm-1)(HBBviewStdDevRadiance2295_2300)
• Radiance standard deviation during hot blackbody view averaged over (985_990
  cm-1)(HBBviewStdDevRadiance985_990)
• Instrument scene mirror position identifier(sceneMirrorPosition)
• Radiance standard deviation during ambient blackbody view averaged over (985_990
  cm-1)(ABBviewStdDevRadiance985_990)
• Laser wavenumber used in definition of output wavenumber scale(outputLaserWavenumber)
• Limit applied to SWskyNEN in determination of SWskyNENacceptable(SWskyNENlimit)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• Blackbody controller Unit 2 power supply temperature(BBcontroller2temp)
• Radiance standard deviation during ambient blackbody view averaged over (700_705
  cm-1)(ABBviewStdDevRadiance700_705)
• Signal conditioning electronics inside air temperature(SCEtemp)
• Imaginary radiance during sky view averaged over (985_990 cm-1)(skyViewImaginaryRadiance985_990)
• Relative Humidity measured in the Interferometer Enclosure(interferometerEnclosureRelativeHumidity)
• Interferometer front end fan airflow heated temperature: used with unheated
  temperature as measure of airflow.(frontEndFanAirHeatedTemp)
• Limit applied to HBBtempDrift in determination of HBBstable flag(HBBtempDriftLimit)
• Scene mirror motor case temperature(mirrorMotorTemp)
• AERI interferometer temperature at second port(interferometerSecondPortTemp)
• lat(lat)
• Electronics rack ambient temperature measured at inside top of rack(rackAmbientTemp)
• Characteristic value representing overall longwave channel responsivity(LWresponsivity)
• Number of complete (forward+backward) interferogram scans in sample average(coadditionsCount)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
  indicative of front end air flow.(frontEndFanAirTempDiff)
• Difference between actual and ideal motor encoder values for current view
  indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
• Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)

• lon(lon)
• Wave number(wnum)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Observation date(dateYYMMDD)
• Dummy altitude for Zeb(alt)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Duration of scene view(sceneViewDuration)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Mean of radiance spectra ensemble(mean_rad)
• Time offset of tweaks from base_time(time_offset)
• Observation longitude(Longitude)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• BB Support Structure Temperature(BBsupportStructureTemp)
• base time(base_time)
• Time (HHMMSS)(timeHHMMSS)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• wavenumbers for standard deviation of radiance spectra(wnum2)
• Observation latitude(Latitude)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• AERI instrument data channel number(channelNumber)
• Julian Day including day and fraction of day(JulianDay)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Version number of Operational Software(systemReleaseNumber)
• Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Character string containing instrument name(instrumentUnitNumber)
• Time at center of AERI sky observation period(Time)
• Observation Altitude(Altitude)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• lat(lat)
• AERI instrument unit serial number(AERIunitNumber)

TWP/AERI/C2 - Instrument maintenance, Sensor failure, hatch stuck

The rain sensors tell the hatch when to close so that the optical 
components are protected
                 from the weather.  When the rain sensors become either dirty or covered 
with salt spray, a 
                 hatch event is triggered. When dirty, they will give a low reading even 
when there is no rain.

                 Error flags also indicated the hatch was stuck in an intermediate 
position, neither open 
                 nor closed.  

                 The hatch closed under sunny conditions due to failure of the electronics 
of the hatch. No 
                 atmospheric spectral data are produced under this condition, which is 
equivalent to a rain 
                 condition.

• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Rain sensor analog output: the rain sensor is located inside the hatch near the
  sky aperture and is used to flag the critical condition of rain falling on
  the AERI s(rainSensorIntensity)

TWP/AERI/C2 - Data Loss due to Communication Problem

The spectrometer was periodically unable to transfer data to the computer. When this 
occurred, the data was deleted and lost as new data filled the spectrometer's memory. All 
existing data in this time period is good. However, much data is missing. For example, half 
of channel 1 and three-quarters of channel 2 may be missing. The DSP card was failing 
intermittantly and the problem was resolved when the card was replaced.

• Ambient blackbody temperature(ABBbottomTemp)
• lat(lat)
• Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
  indicative of front end air flow.(frontEndFanAirTempDiff)
• Observation date(dateYYMMDD)
• Number of views in a sequence(sceneMirPosCount)
• Scene mirror motor driver heat sink temperature(motorDriverTemp)
• Rain sensor analog output: the rain sensor is located inside the hatch near the
  sky aperture and is used to flag the critical condition of rain falling on
  the AERI s(rainSensorIntensity)
• Radiance standard deviation during ambient blackbody view averaged over
  (2510_2515 cm-1)(ABBviewStdDevRadiance2510_2515)
• Duration of scene view(sceneViewDuration)
• Detector temperature sensed via diode near detector(detectorTemp)
• Shortwave surface air brightness temperature from radiance average (2295_2300
  cm-1)(surfaceLayerAirTemp2295_2300)
• Ambient air temperature near the interferometer(airNearInterferometerTemp)
• Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
• Limit applied to SWskyNEN in determination of SWskyNENacceptable(SWskyNENlimit)
• Characteristic value representing overall longwave channel responsivity(LWresponsivity)
• Limit applied to HBBtempDrift in determination of HBBstable flag(HBBtempDriftLimit)
• Number of terms used in finite field of view correction(numberOfTerms)
• Character string containing instrument name(instrumentUnitNumber)
• Weight factor for bottom used in calculating ambient blackbody temperature
  average(ABBbottomTempWeight)
• Blackbody controller Unit 1 power supply temperature(BBcontroller1temp)
• Logical flag indicating whether longwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using LWskyNEN and
  LWskyNENlimit.(LWskyNENacceptable)
• Signal conditioning electronics inside air temperature(SCEtemp)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
• Blackbody controller Unit 2 power supply temperature(BBcontroller2temp)
• Hot blackbody temperature - apex(HBBapexTemp)
• Ambient air temperature near blackbodies(airNearBBsTemp)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• Radiance standard deviation during hot blackbody view averaged over (985_990
  cm-1)(HBBviewStdDevRadiance985_990)
• Radiance standard deviation during ambient blackbody view averaged over
  (2282_2287 cm-1)(ABBviewStdDevRadiance2282_2287)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
• Radiance standard deviation during hot blackbody view averaged over (2295_2300
  cm-1)(HBBviewStdDevRadiance2295_2300)
• Radiance standard deviation during ambient blackbody view averaged over
  (2295_2300 cm-1)(ABBviewStdDevRadiance2295_2300)
• Resistive temperature of 97 Kohm fixed resistor located in SCE-P4 shell(fixed97KohmResistor)
• The noise equivalent radiance observed in the longwave channel during a sky view
  at 1000 cm-1(LWskyNEN)
• Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
• Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
• base time(base_time)
• Scene mirror temperature as measured at the center of the back of the mirror(sceneMirrorTemp)
• Weight factor for apex used in calculating ambient blackbody temperature average(ABBapexTempWeight)
• Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
• AERI interferometer temperature at second port(interferometerSecondPortTemp)
• xxx(dataAvailable)
• The noise equivalent radiance observed in the shortwave channel during a sky
  view at 2500 cm-1(SWskyNEN)
• Radiance standard deviation during ambient blackbody view averaged over (675_680
  cm-1)(ABBviewStdDevRadiance675_680)
• Blackbody cavity geometry factor(BBcavityFactor)
• Size of buffer holding initial spectrum(originalInterferogramSize)
• Imaginary radiance during sky view averaged over (2510_2515 cm-1)(skyViewImaginaryRadiance2510_2515)
• Time offset of tweaks from base_time(time_offset)
• Imaginary radiance during sky view averaged over (2295_2300 cm-1)(skyViewImaginaryRadiance2295_2300)
• AERI instrument data channel number(channelNumber)
• Factor used to convert single-scan noise to two-minute equivalent(twoMinuteNoiseEstimateFactor)
• Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
• Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
• Corrective offset for final hot blackbody average temperature(HBBtempOffset)
• Corrective offset for final ambient blackbody average temperature(ABBtempOffset)
• Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
• Radiance standard deviation during hot blackbody view averaged over (700_705
  cm-1)(HBBviewStdDevRadiance700_705)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Electronics rack ambient temperature measured at inside top of rack(rackAmbientTemp)
• Laser wavenumber used in definition of output wavenumber scale(outputLaserWavenumber)
• Scene mirror position encoder value(sceneMirPosEncoder)
• Weight factor for apex used in calculating hot blackbody temperature average(HBBapexTempWeight)
• Limit applied to LWskyNEN in determination of LWskyNENacceptable(LWskyNENlimit)
• Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
• Interferometer front end fan airflow heated temperature: used with unheated
  temperature as measure of airflow.(frontEndFanAirHeatedTemp)
• Original laser wavenumber assumed for this instrument(originalLaserWavenumber)
• Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
• lon(lon)
• Stirling cycle cooler expander temperature(coolerExpanderTemp)
• Motor step value given to motor controller to achieve proper mirror positioning(sceneMirrorMotorStep)
• Radiance standard deviation during ambient blackbody view averaged over (700_705
  cm-1)(ABBviewStdDevRadiance700_705)
• Scene mirror motor case temperature(mirrorMotorTemp)
• Julian Day including day and fraction of day(JulianDay)
• Time at center of AERI sky observation period(Time_UTC_hours)
• Dummy altitude for Zeb(alt)
• Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
• Radiance standard deviation during hot blackbody view averaged over (2282_2287
  cm-1)(HBBviewStdDevRadiance2282_2287)
• Ambient air temperature at hatch opening(outsideAirTemp)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Radiance standard deviation during ambient blackbody view averaged over (985_990
  cm-1)(ABBviewStdDevRadiance985_990)
• Version number of Operational Software(systemReleaseNumber)
• Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
• Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
• Logical flag indicating whether HBB temperature is stable (true) or not stable
  (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
• Logical flag indicating whether shortwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using SWskyNEN and
  SWskyNENlimit.(SWskyNENacceptable)
• Radiance standard deviation during hot blackbody view averaged over (675_680
  cm-1)(HBBviewStdDevRadiance675_680)
• Hot blackbody temperature - rim top(HBBtopTemp)
• Imaginary radiance during sky view averaged over (700_705 cm-1)(skyViewImaginaryRadiance700_705)
• Relative Humidity measured in the Interferometer Enclosure(interferometerEnclosureRelativeHumidity)
• Observation longitude(Longitude)
• Imaginary radiance during sky view averaged over (985_990 cm-1)(skyViewImaginaryRadiance985_990)
• Interferometer window temperature measured on the outside of the aluminum window
  flange(interferometerWindowTemp)
• AERI ingest computer temperature measured at back panel of computer(computerTemp)
• Field of view half angle used in finite FOV correction(FFOVhalfAngle)
• Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
• Weight factor for top used in calculating ambient blackbody temperature average(ABBtopTempWeight)
• Resistive temperature of 12 Kohm fixed resistor located in SCE-P3 shell(fixed12KohmResistor)
• Observation latitude(Latitude)
• Size of buffer holding expanded spectrum before interpolation(expandedInterferogramSize)
• Stirling cooler power supply temperature measured at power supply frame(coolerPowerSupplyTemp)
• Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
• Imaginary radiance during sky view averaged over (2282_2287 cm-1)(skyViewImaginaryRadiance2282_2287)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
• Time (HHMMSS)(timeHHMMSS)
• Shortwave elevated air brightness temperature from radiance average (2282_2287
  cm-1)(elevatedLayerAirTemp2282_2287)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Interferometer front end fan airflow unheated temperature: used with heated
  temperature as measure of airflow.(frontEndFanAirUnheatedTemp)
• Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
• time(time)
• Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
• Radiance standard deviation during hot blackbody view averaged over (2510_2515
  cm-1)(HBBviewStdDevRadiance2510_2515)
• Ambient blackbody temperature - rim top(ABBtopTemp)
• Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
• Instrument scene mirror position identifier(sceneMirrorPosition)
• Weight factor for bottom used in calculating hot blackbody temperature average(HBBbottomTempWeight)
• Ambient blackbody temperature - apex(ABBapexTemp)
• Observation Altitude(Altitude)
• Difference between actual and ideal motor encoder values for current view
  indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Imaginary radiance during sky view averaged over (675_680 cm-1)(skyViewImaginaryRadiance675_680)
• Stirling cooler compressor temperature measured at compressor heatsink(coolerCompressorTemp)
• Weight factor for top used in calculating hot blackbody temperature average(HBBtopTempWeight)
• Hot blackbody temperature - rim bottom(HBBbottomTemp)
• AERI instrument unit serial number(AERIunitNumber)
• Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
• Stirling cycle cooler current(coolerCurrent)
• Sun sensor analog output: The sun sensor has a view angle to the sky slightly
  larger than the interferometer FOV and is aligned to the interferometer
  line-of-sight. I(sunSensorIntensity)
• Longwave elevated air brightness temperature from radiance average (700_705
  cm-1)(elevatedLayerAirTemp700_705)
• Number of complete (forward+backward) interferogram scans in sample average(coadditionsCount)
• Relative humidity measured in the optics compartment atop the interferometer.(opticsCompartmentRelativeHumidity)
• The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
  centered on the sky view(HBBtempDrift)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Resistive temperature of 2500 Ohm fixed resistor - banana plug mounted(fixed2500ohmResistor)
• Spare temperature sensor (location TBD)(spareTemp)

• Raw data stream - documentation not supported(raw)

• Rain sensor analog output: the rain sensor is located inside the hatch near the
  sky aperture and is used to flag the critical condition of rain falling on
  the AERI s(rainSensorIntensity)
• Wave number in reciprocal centimeters(wnumsum14)
• Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
• Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
• Wave number in reciprocal centimeters(wnumsum1)
• Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
• Wave number in reciprocal centimeters(wnumsum2)
• Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
• AERI LW Scene Brightness Temp Spectral Averages (Ch1)(SkyBrightnessTempSpectralAveragesCh1)
• Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Wave number in reciprocal centimeters(wnumsum6)
• lon(lon)
• Time (HHMMSS)(timeHHMMSS)
• Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
• Wave number in reciprocal centimeters(wnumsum3)
• Wave number in reciprocal centimeters(wnumsum12)
• Wave number in reciprocal centimeters(wnumsum13)
• Wave number in reciprocal centimeters(wnumsum4)
• Wave number in reciprocal centimeters(wnumsum11)
• Characteristic value representing overall longwave channel responsivity(LWresponsivity)
• AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENestimateNo2Ch1)
• Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
• AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENestimateNo2Ch2)
• Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
  indicative of front end air flow.(frontEndFanAirTempDiff)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Logical flag indicating whether longwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using LWskyNEN and
  LWskyNENlimit.(LWskyNENacceptable)
• Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
• Shortwave elevated air brightness temperature from radiance average (2282_2287
  cm-1)(elevatedLayerAirTemp2282_2287)
• Dummy altitude for Zeb(alt)
• Wave number in reciprocal centimeters(wnumsum7)
• AERI SW Scene Variability Spectral Averages (Ch2)(SkyUniformityCh2)
• AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENestimateNo1Ch1)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• AERI LW Scene Variability Spectral Averages (Ch1)(SkyUniformityCh1)
• Julian Day including day and fraction of day(JulianDay)
• Wave number in reciprocal centimeters(wnumsum5)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
• AERI instrument data channel number(channelNumber)
• Sun sensor analog output: The sun sensor has a view angle to the sky slightly
  larger than the interferometer FOV and is aligned to the interferometer
  line-of-sight. I(sunSensorIntensity)
• base time(base_time)
• Logical flag indicating whether shortwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using SWskyNEN and
  SWskyNENlimit.(SWskyNENacceptable)
• Wave number in reciprocal centimeters(wnumsum8)
• Observation latitude(Latitude)
• The noise equivalent radiance observed in the longwave channel during a sky view
  at 1000 cm-1(LWskyNEN)
• Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
• time(time)
• Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
• Wave number in reciprocal centimeters(wnumsum9)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
• Version number of Operational Software(systemReleaseNumber)
• Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Observation date(dateYYMMDD)
• Time offset of tweaks from base_time(time_offset)
• The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
  centered on the sky view(HBBtempDrift)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Observation longitude(Longitude)
• Character string containing instrument name(instrumentUnitNumber)
• AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENCh1)
• Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
• xxx(dataAvailable)
• AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENestimateNo1Ch2)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENCh2)
• Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
• AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectralAveragesCh2)
• lat(lat)
• Shortwave surface air brightness temperature from radiance average (2295_2300
  cm-1)(surfaceLayerAirTemp2295_2300)
• Wave number in reciprocal centimeters(wnumsum10)
• The noise equivalent radiance observed in the shortwave channel during a sky
  view at 2500 cm-1(SWskyNEN)
• Logical flag indicating whether HBB temperature is stable (true) or not stable
  (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
• Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
• Observation Altitude(Altitude)
• AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
• Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
• Time at center of AERI sky observation period(Time_UTC_hours)
• Longwave elevated air brightness temperature from radiance average (700_705
  cm-1)(elevatedLayerAirTemp700_705)
• AERI SW Scene Brightness Temp Spectral Averages (Ch2)(SkyBrightnessTempSpectralAveragesCh2)
• Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
• AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectralAveragesCh2)
• Duration of scene view(sceneViewDuration)
• Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
• AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectralAveragesCh1)
• Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
• AERI instrument unit serial number(AERIunitNumber)
• Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
• Difference between actual and ideal motor encoder values for current view
  indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)

• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• lat(lat)
• Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Time offset of tweaks from base_time(time_offset)
• AERI instrument data channel number(channelNumber)
• base time(base_time)
• Observation latitude(Latitude)
• lon(lon)
• Version number of Operational Software(systemReleaseNumber)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Mean of radiance spectra ensemble(mean_rad)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Time (HHMMSS)(timeHHMMSS)
• AERI instrument unit serial number(AERIunitNumber)
• Character string containing instrument name(instrumentUnitNumber)
• Time at center of AERI sky observation period(Time_UTC_hours)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Dummy altitude for Zeb(alt)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Observation Altitude(Altitude)
• Julian Day including day and fraction of day(JulianDay)
• Observation longitude(Longitude)
• wavenumbers for standard deviation of radiance spectra(wnum2)
• Observation date(dateYYMMDD)
• Duration of scene view(sceneViewDuration)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• time(time)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Wave number(wnum)

• Version number of Operational Software(systemReleaseNumber)
• Time (HHMMSS)(timeHHMMSS)
• Julian Day including day and fraction of day(JulianDay)
• time(time)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• AERI instrument unit serial number(AERIunitNumber)
• Mean of radiance spectra ensemble(mean_rad)
• Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
• lon(lon)
• lat(lat)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Wave number(wnum)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Character string containing instrument name(instrumentUnitNumber)
• Time offset of tweaks from base_time(time_offset)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• wavenumbers for standard deviation of radiance spectra(wnum2)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Duration of scene view(sceneViewDuration)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Observation Altitude(Altitude)
• Observation date(dateYYMMDD)
• Dummy altitude for Zeb(alt)
• base time(base_time)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Time at center of AERI sky observation period(Time_UTC_hours)
• Observation longitude(Longitude)
• Observation latitude(Latitude)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• AERI instrument data channel number(channelNumber)

TWP/AERI/C2 - Reprocessed Data Available from Archive

Reprocessed TWP.C2 AERI data from 20001201-20010331
are now available from the ARM Archive.  All future
requests for TWP.C2 AERI data from the Archive will
result in retrieval of these reprocessed data files.


The reprocessed data replace the original data which 
were incorrectly processed with wnum and wnum2 as 
2-dimensional variables.

Reprocessed data:
=========================================================
Datastream Name        # of Files      Total Size (Bytes)
=========================================================
twpaerich1C2.a1             120           544351404
twpaerich2C2.a1             120           481972984
twpaeriengineerC2.a1        120            16568568
twpaerisummaryC2.a1         120            87022808

Note: engineer and summary files were not affected by the original
      problem but were re-created with the reprocessing.

Comments: No data are available for 20010330 due to unavailability of
complete raw data for this day.

Questions regarding the data should be directed to the mentor:
Jack Demirgian
ftirman@anl.gov
(630)252-6807

• Wave number(wnum)
• wavenumbers for standard deviation of radiance spectra(wnum2)

• wavenumbers for standard deviation of radiance spectra(wnum2)
• Wave number(wnum)

TWP/AERI/C2 - Bias incomparison to SKYRAD-IRT

During the time period specified, the IRT measured higher sky temperatures
than the AERI.  While it is not possible to determine which instrument is
biased, the AERI is calibrated between each sample and thus its data has
a high degree of confidence.

• Mean of radiance spectra ensemble(mean_rad)

TWP/AERI/C2 - Conditioning Electronics Off

The conditioning electronics box on the Electronics was was switched off for the two days 
in question.  It might have been bumped or something.  It was turned back on at the end 
of the day on July 3rd, 2007.  Do not use the data from July 2nd or July 3rd.

• Ambient blackbody temperature(ABBbottomTemp)
• lat(lat)
• Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
  indicative of front end air flow.(frontEndFanAirTempDiff)
• Number of views in a sequence(sceneMirPosCount)
• Observation date(dateYYMMDD)
• Scene mirror motor driver heat sink temperature(motorDriverTemp)
• Rain sensor analog output: the rain sensor is located inside the hatch near the
  sky aperture and is used to flag the critical condition of rain falling on
  the AERI s(rainSensorIntensity)
• Radiance standard deviation during ambient blackbody view averaged over
  (2510_2515 cm-1)(ABBviewStdDevRadiance2510_2515)
• Duration of scene view(sceneViewDuration)
• Detector temperature sensed via diode near detector(detectorTemp)
• Shortwave surface air brightness temperature from radiance average (2295_2300
  cm-1)(surfaceLayerAirTemp2295_2300)
• Ambient air temperature near the interferometer(airNearInterferometerTemp)
• Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
• Limit applied to SWskyNEN in determination of SWskyNENacceptable(SWskyNENlimit)
• Characteristic value representing overall longwave channel responsivity(LWresponsivity)
• Limit applied to HBBtempDrift in determination of HBBstable flag(HBBtempDriftLimit)
• Number of terms used in finite field of view correction(numberOfTerms)
• Character string containing instrument name(instrumentUnitNumber)
• Weight factor for bottom used in calculating ambient blackbody temperature
  average(ABBbottomTempWeight)
• Blackbody controller Unit 1 power supply temperature(BBcontroller1temp)
• Logical flag indicating whether longwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using LWskyNEN and
  LWskyNENlimit.(LWskyNENacceptable)
• Signal conditioning electronics inside air temperature(SCEtemp)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
• Blackbody controller Unit 2 power supply temperature(BBcontroller2temp)
• Hot blackbody temperature - apex(HBBapexTemp)
• Ambient air temperature near blackbodies(airNearBBsTemp)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• Radiance standard deviation during hot blackbody view averaged over (985_990
  cm-1)(HBBviewStdDevRadiance985_990)
• Radiance standard deviation during ambient blackbody view averaged over
  (2282_2287 cm-1)(ABBviewStdDevRadiance2282_2287)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
• Radiance standard deviation during hot blackbody view averaged over (2295_2300
  cm-1)(HBBviewStdDevRadiance2295_2300)
• Radiance standard deviation during ambient blackbody view averaged over
  (2295_2300 cm-1)(ABBviewStdDevRadiance2295_2300)
• Resistive temperature of 97 Kohm fixed resistor located in SCE-P4 shell(fixed97KohmResistor)
• The noise equivalent radiance observed in the longwave channel during a sky view
  at 1000 cm-1(LWskyNEN)
• Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
• Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
• base time(base_time)
• Weight factor for apex used in calculating ambient blackbody temperature average(ABBapexTempWeight)
• Scene mirror temperature as measured at the center of the back of the mirror(sceneMirrorTemp)
• Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
• AERI interferometer temperature at second port(interferometerSecondPortTemp)
• xxx(dataAvailable)
• The noise equivalent radiance observed in the shortwave channel during a sky
  view at 2500 cm-1(SWskyNEN)
• Radiance standard deviation during ambient blackbody view averaged over (675_680
  cm-1)(ABBviewStdDevRadiance675_680)
• Blackbody cavity geometry factor(BBcavityFactor)
• Size of buffer holding initial spectrum(originalInterferogramSize)
• Imaginary radiance during sky view averaged over (2510_2515 cm-1)(skyViewImaginaryRadiance2510_2515)
• Time offset of tweaks from base_time(time_offset)
• Imaginary radiance during sky view averaged over (2295_2300 cm-1)(skyViewImaginaryRadiance2295_2300)
• AERI instrument data channel number(channelNumber)
• Factor used to convert single-scan noise to two-minute equivalent(twoMinuteNoiseEstimateFactor)
• Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
• Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
• Corrective offset for final hot blackbody average temperature(HBBtempOffset)
• Corrective offset for final ambient blackbody average temperature(ABBtempOffset)
• Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
• Radiance standard deviation during hot blackbody view averaged over (700_705
  cm-1)(HBBviewStdDevRadiance700_705)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Electronics rack ambient temperature measured at inside top of rack(rackAmbientTemp)
• Laser wavenumber used in definition of output wavenumber scale(outputLaserWavenumber)
• Scene mirror position encoder value(sceneMirPosEncoder)
• Weight factor for apex used in calculating hot blackbody temperature average(HBBapexTempWeight)
• Limit applied to LWskyNEN in determination of LWskyNENacceptable(LWskyNENlimit)
• Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
• Interferometer front end fan airflow heated temperature: used with unheated
  temperature as measure of airflow.(frontEndFanAirHeatedTemp)
• Original laser wavenumber assumed for this instrument(originalLaserWavenumber)
• Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
• Stirling cycle cooler expander temperature(coolerExpanderTemp)
• lon(lon)
• Motor step value given to motor controller to achieve proper mirror positioning(sceneMirrorMotorStep)
• Radiance standard deviation during ambient blackbody view averaged over (700_705
  cm-1)(ABBviewStdDevRadiance700_705)
• Scene mirror motor case temperature(mirrorMotorTemp)
• Julian Day including day and fraction of day(JulianDay)
• Time at center of AERI sky observation period(Time_UTC_hours)
• Dummy altitude for Zeb(alt)
• Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
• Radiance standard deviation during hot blackbody view averaged over (2282_2287
  cm-1)(HBBviewStdDevRadiance2282_2287)
• Ambient air temperature at hatch opening(outsideAirTemp)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Radiance standard deviation during ambient blackbody view averaged over (985_990
  cm-1)(ABBviewStdDevRadiance985_990)
• Version number of Operational Software(systemReleaseNumber)
• Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
• Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
• Logical flag indicating whether HBB temperature is stable (true) or not stable
  (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
• Logical flag indicating whether shortwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using SWskyNEN and
  SWskyNENlimit.(SWskyNENacceptable)
• Radiance standard deviation during hot blackbody view averaged over (675_680
  cm-1)(HBBviewStdDevRadiance675_680)
• Hot blackbody temperature - rim top(HBBtopTemp)
• Imaginary radiance during sky view averaged over (700_705 cm-1)(skyViewImaginaryRadiance700_705)
• Relative Humidity measured in the Interferometer Enclosure(interferometerEnclosureRelativeHumidity)
• Observation longitude(Longitude)
• Imaginary radiance during sky view averaged over (985_990 cm-1)(skyViewImaginaryRadiance985_990)
• Interferometer window temperature measured on the outside of the aluminum window
  flange(interferometerWindowTemp)
• AERI ingest computer temperature measured at back panel of computer(computerTemp)
• Field of view half angle used in finite FOV correction(FFOVhalfAngle)
• Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
• Weight factor for top used in calculating ambient blackbody temperature average(ABBtopTempWeight)
• Resistive temperature of 12 Kohm fixed resistor located in SCE-P3 shell(fixed12KohmResistor)
• Observation latitude(Latitude)
• Size of buffer holding expanded spectrum before interpolation(expandedInterferogramSize)
• Stirling cooler power supply temperature measured at power supply frame(coolerPowerSupplyTemp)
• Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
• Imaginary radiance during sky view averaged over (2282_2287 cm-1)(skyViewImaginaryRadiance2282_2287)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
• Time (HHMMSS)(timeHHMMSS)
• Shortwave elevated air brightness temperature from radiance average (2282_2287
  cm-1)(elevatedLayerAirTemp2282_2287)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Interferometer front end fan airflow unheated temperature: used with heated
  temperature as measure of airflow.(frontEndFanAirUnheatedTemp)
• Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
• time(time)
• Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
• Radiance standard deviation during hot blackbody view averaged over (2510_2515
  cm-1)(HBBviewStdDevRadiance2510_2515)
• Ambient blackbody temperature - rim top(ABBtopTemp)
• Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
• Instrument scene mirror position identifier(sceneMirrorPosition)
• Weight factor for bottom used in calculating hot blackbody temperature average(HBBbottomTempWeight)
• Ambient blackbody temperature - apex(ABBapexTemp)
• Observation Altitude(Altitude)
• Difference between actual and ideal motor encoder values for current view
  indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Imaginary radiance during sky view averaged over (675_680 cm-1)(skyViewImaginaryRadiance675_680)
• Stirling cooler compressor temperature measured at compressor heatsink(coolerCompressorTemp)
• Weight factor for top used in calculating hot blackbody temperature average(HBBtopTempWeight)
• Hot blackbody temperature - rim bottom(HBBbottomTemp)
• AERI instrument unit serial number(AERIunitNumber)
• Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
• Stirling cycle cooler current(coolerCurrent)
• Sun sensor analog output: The sun sensor has a view angle to the sky slightly
  larger than the interferometer FOV and is aligned to the interferometer
  line-of-sight. I(sunSensorIntensity)
• Longwave elevated air brightness temperature from radiance average (700_705
  cm-1)(elevatedLayerAirTemp700_705)
• Number of complete (forward+backward) interferogram scans in sample average(coadditionsCount)
• Relative humidity measured in the optics compartment atop the interferometer.(opticsCompartmentRelativeHumidity)
• The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
  centered on the sky view(HBBtempDrift)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Resistive temperature of 2500 Ohm fixed resistor - banana plug mounted(fixed2500ohmResistor)
• Spare temperature sensor (location TBD)(spareTemp)

• Raw data stream - documentation not supported(raw)

• null(Raw data stream - documentation not supported)

• Rain sensor analog output: the rain sensor is located inside the hatch near the
  sky aperture and is used to flag the critical condition of rain falling on
  the AERI s(rainSensorIntensity)
• Wave number in reciprocal centimeters(wnumsum14)
• Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
• Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
• Wave number in reciprocal centimeters(wnumsum1)
• Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
• Wave number in reciprocal centimeters(wnumsum2)
• Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
• AERI LW Scene Brightness Temp Spectral Averages (Ch1)(SkyBrightnessTempSpectralAveragesCh1)
• Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Wave number in reciprocal centimeters(wnumsum6)
• lon(lon)
• Time (HHMMSS)(timeHHMMSS)
• Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
• Wave number in reciprocal centimeters(wnumsum3)
• Wave number in reciprocal centimeters(wnumsum12)
• Wave number in reciprocal centimeters(wnumsum13)
• Wave number in reciprocal centimeters(wnumsum4)
• Wave number in reciprocal centimeters(wnumsum11)
• Characteristic value representing overall longwave channel responsivity(LWresponsivity)
• AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENestimateNo2Ch1)
• Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
• AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENestimateNo2Ch2)
• Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
  indicative of front end air flow.(frontEndFanAirTempDiff)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Logical flag indicating whether longwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using LWskyNEN and
  LWskyNENlimit.(LWskyNENacceptable)
• Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
• Shortwave elevated air brightness temperature from radiance average (2282_2287
  cm-1)(elevatedLayerAirTemp2282_2287)
• Dummy altitude for Zeb(alt)
• Wave number in reciprocal centimeters(wnumsum7)
• AERI SW Scene Variability Spectral Averages (Ch2)(SkyUniformityCh2)
• AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENestimateNo1Ch1)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• AERI LW Scene Variability Spectral Averages (Ch1)(SkyUniformityCh1)
• Julian Day including day and fraction of day(JulianDay)
• Wave number in reciprocal centimeters(wnumsum5)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
• AERI instrument data channel number(channelNumber)
• Sun sensor analog output: The sun sensor has a view angle to the sky slightly
  larger than the interferometer FOV and is aligned to the interferometer
  line-of-sight. I(sunSensorIntensity)
• Logical flag indicating whether shortwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using SWskyNEN and
  SWskyNENlimit.(SWskyNENacceptable)
• base time(base_time)
• Wave number in reciprocal centimeters(wnumsum8)
• Observation latitude(Latitude)
• The noise equivalent radiance observed in the longwave channel during a sky view
  at 1000 cm-1(LWskyNEN)
• Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
• time(time)
• Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
• Wave number in reciprocal centimeters(wnumsum9)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
• Version number of Operational Software(systemReleaseNumber)
• Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Observation date(dateYYMMDD)
• Time offset of tweaks from base_time(time_offset)
• The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
  centered on the sky view(HBBtempDrift)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Observation longitude(Longitude)
• Character string containing instrument name(instrumentUnitNumber)
• AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENCh1)
• Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
• xxx(dataAvailable)
• AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENestimateNo1Ch2)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENCh2)
• Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
• AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectralAveragesCh2)
• lat(lat)
• Shortwave surface air brightness temperature from radiance average (2295_2300
  cm-1)(surfaceLayerAirTemp2295_2300)
• Wave number in reciprocal centimeters(wnumsum10)
• The noise equivalent radiance observed in the shortwave channel during a sky
  view at 2500 cm-1(SWskyNEN)
• Logical flag indicating whether HBB temperature is stable (true) or not stable
  (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
• Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
• Observation Altitude(Altitude)
• AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
• Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
• Time at center of AERI sky observation period(Time_UTC_hours)
• Longwave elevated air brightness temperature from radiance average (700_705
  cm-1)(elevatedLayerAirTemp700_705)
• AERI SW Scene Brightness Temp Spectral Averages (Ch2)(SkyBrightnessTempSpectralAveragesCh2)
• Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
• AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectralAveragesCh2)
• Duration of scene view(sceneViewDuration)
• Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
• AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectralAveragesCh1)
• Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
• AERI instrument unit serial number(AERIunitNumber)
• Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
• Difference between actual and ideal motor encoder values for current view
  indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)

• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• lat(lat)
• Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Time offset of tweaks from base_time(time_offset)
• AERI instrument data channel number(channelNumber)
• base time(base_time)
• Observation latitude(Latitude)
• lon(lon)
• Version number of Operational Software(systemReleaseNumber)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Mean of radiance spectra ensemble(mean_rad)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Time (HHMMSS)(timeHHMMSS)
• AERI instrument unit serial number(AERIunitNumber)
• Character string containing instrument name(instrumentUnitNumber)
• Time at center of AERI sky observation period(Time_UTC_hours)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Dummy altitude for Zeb(alt)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Observation Altitude(Altitude)
• Julian Day including day and fraction of day(JulianDay)
• Observation longitude(Longitude)
• wavenumbers for standard deviation of radiance spectra(wnum2)
• Observation date(dateYYMMDD)
• Duration of scene view(sceneViewDuration)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• time(time)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Wave number(wnum)

• Version number of Operational Software(systemReleaseNumber)
• Time (HHMMSS)(timeHHMMSS)
• Julian Day including day and fraction of day(JulianDay)
• time(time)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• AERI instrument unit serial number(AERIunitNumber)
• Mean of radiance spectra ensemble(mean_rad)
• Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
• lon(lon)
• lat(lat)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Wave number(wnum)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Character string containing instrument name(instrumentUnitNumber)
• Time offset of tweaks from base_time(time_offset)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• wavenumbers for standard deviation of radiance spectra(wnum2)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Duration of scene view(sceneViewDuration)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Observation Altitude(Altitude)
• Observation date(dateYYMMDD)
• Dummy altitude for Zeb(alt)
• base time(base_time)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Time at center of AERI sky observation period(Time_UTC_hours)
• Observation longitude(Longitude)
• Observation latitude(Latitude)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• AERI instrument data channel number(channelNumber)

• Standard deviation of the average radiance in the 985-990 wavenumber window
  during the AERI dwell time(aeri_dwell_atm_var_channel_1)
• Dummy altitude for Zeb(alt)
• Cloud base height from the MPL(mean_mpl_cbh)
• Ensemble average of 23.8 GHz sky brightness temperature from the MWR(mean_23tbsky)
• Standard deviation of the average radiance in the 2510-2515 wavenumber window
  during the AERI dwell time(aeri_dwell_atm_var_channel_2)
• Standard deviation of 31tbsky ensemble(sdev_31tbsky)
• Binary field indicating which inputs are available and used to set the
  nonclear_flag(nonclear_inputs)
• Standard deviation of cloud2 ensemble(sdev_cloud2_cbh)
• Standard deviation of mpl_cbh ensemble(sdev_mpl_cbh)
• Standard deviation of ratio ensemble about mean_dir_to_diff_ratio(sdev_dir_by_diff_ratio)
• Number of clear observations in ensemble(nobs_mpl_clear)
• Integrated vapor column from sonde using MWR Instrument Performance Model (IPM)(integ_vap_sonde)
• Standard deviation of the IR temperature ensemble(sdev_irt)
• Calculated cloud cover fraction from the WSI(cloud_cover_fract)
• Number of foggy observations in ensemble (probably condensation on the window)(nobs_mpl_foggy)
• Average IR temperature from the IRT (on the MWR)(mean_irt)
• Standard deviation of cloud1 ensemble(sdev_cloud1_cbh)
• Number of observations in each `large` MWR ensemble (23tbsky and 31tbsky)(nobs_mwr_ensembles_large)
• Number of cloudy observations in ensemble(nobs_cloud3_cbh)
• base time(base_time)
• Standard deviation of liq ensemble(sdev_liq)
• Number of observations in each MWR ensemble (23tbsky, 31tbsky, vap, liq)(nobs_mwr_ensembles)
• Cloud base height estimate from the field mean_AERI_BT_channel_1(cbh_AERI_channel_1)
• Retrieved profile sample time minus sonde launch time(sonde_offset_time)
• Ensemble average of total water vapor along LOS path from the MWR(mean_vap)
• Ensemble average of second cloud base height from the Belfort ceilometer(mean_cloud2_cbh)
• Standard deviation of 23tbsky ensemble(sdev_23tbsky)
• Ensemble average of 31.4 GHz sky brightness temperature from the MWR(mean_31tbsky)
• Standard deviation of 23tbsky ensemble(sdev_23tbsky_large)
• Time offset of tweaks from base_time(time_offset)
• Number of cloudy observations in ensemble(nobs_cloud1_cbh)
• IR temperature calculated from the AERI spectral response function used to
  mimick the output from the IR thermometer on the MWR(calculated_irt)
• Cloud detection flag from sgpaerilblcloudsC1.c1(nonclear_flag)
• Cloud base height estimate from the field mean_AERI_BT_channel_2(cbh_AERI_channel_2)
• lat(lat)
• Ensemble average of ratios of direct_norm_broadband divided by
  diffuse_hemisp_broadband from the SIROS(mean_dir_by_diff_ratio)
• Ensemble average of third cloud base height from the Belfort ceilometer(mean_cloud3_cbh)
• Average total liquid water along LOS path from the MWR(mean_liq)
• Standard deviation of vap ensemble(sdev_vap)
• Number of clear observations in ensemble(nobs_cloud2_clear)
• Number of cloudy observations in ensemble(nobs_mpl_cbh)
• AERI sample time minus WSI image time(wsi_offset_time)
• Number of clear observations in ensemble(nobs_cloud1_clear)
• Standard deviation of cloud3 ensemble(sdev_cloud3_cbh)
• Standard deviation of 31tbsky ensemble(sdev_31tbsky_large)
• Data quality flag for MPL cbh ensemble(mpl_cbh_dq_flag)
• Number of cloudy observations in ensemble(nobs_cloud2_cbh)
• Average of brightness temperatures calculated from AERI radiances within
  spectral window for channel 1: [1142.20,1147.03](mean_AERI_BT_channel_1)
• Serial number for the sonde used at this time.(sonde_serial_number)
• Ensemble average of first cloud base height from the Belfort ceilometer(mean_cloud1_cbh)
• Number of clear observations in ensemble(nobs_cloud3_clear)
• time(time)
• lon(lon)
• Average of brightness temperatures calculated from AERI radiances within
  spectral window for channel 2: [2506.20,2511.02](mean_AERI_BT_channel_2)
• Number of ratios in ensemble(nobs_dir_by_diff_ratio)

TWP/AERI/C2 - Reprocess: Incorrect lat/lon/alt

AERI reporting wrong lat/lon in data.  The values reported are representative of Darwin, 
not Nauru.  A low level reprocessing task has been submitted.

• lon(lon)
• lat(lat)

• Raw data stream - documentation not supported(raw)

• lon(lon)
• lat(lat)

• lon(lon)
• lat(lat)

• lon(lon)
• lat(lat)

• lon(lon)
• lat(lat)

Calibration interruption of data TWP Nauru

Instument covered with black body for calibration check

• Sun sensor analog output: The sun sensor has a view angle to the sky slightly
  larger than the interferometer FOV and is aligned to the interferometer
  line-of-sight. I(sunSensorIntensity)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENEstimateNo2Ch2)
• Version number of Operational Software(systemReleaseNumber)
• Logical flag indicating whether longwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using LWskyNEN and
  LWskyNENlimit.(LWskyNENacceptable)
• Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
• AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENEstimateNo1Ch2)
• AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENEstimateNo1Ch1)
• Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
• Logical flag indicating whether HBB temperature is stable (true) or not stable
  (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
• Time at center of AERI sky observation period(Time)
• Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
• AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENEstimateNo2Ch1)
• Shortwave surface air brightness temperature from radiance average (2295_2300
  cm-1)(surfaceLayerAirTemp2295_2300)
• Difference between actual and ideal motor encoder values for current view
  indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
• base time(base_time)
• Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
• AERI instrument data channel number(channelNumber)
• AERI instrument unit serial number(AERIunitNumber)
• lat(lat)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• lon(lon)
• The noise equivalent radiance observed in the shortwave channel during a sky
  view at 2500 cm-1(SWskyNEN)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
• Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
• Time (HHMMSS)(timeHHMMSS)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Time offset of tweaks from base_time(time_offset)
• Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
• Longwave elevated air brightness temperature from radiance average (700_705
  cm-1)(elevatedLayerAirTemp700_705)
• Observation Altitude(Altitude)
• Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
• Character string containing instrument name(instrumentUnitNumber)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Shortwave elevated air brightness temperature from radiance average (2282_2287
  cm-1)(elevatedLayerAirTemp2282_2287)
• Julian Day including day and fraction of day(JulianDay)
• AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectraAveragesCh1)
• Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
• Wave number in reciprocal centimeters(wnumsum1)
• AERI LW Scene Variability Spectral Averages (Ch1)(SkyVariabilityAveragesCh1)
• Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
• Wave number in reciprocal centimeters(wnumsum2)
• Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
• AERI SW Scene Brightness Temp Spectral Averages (Ch2)(SkyBrightnessTempSpectralAveragesCh2)
• Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Observation date(dateYYMMDD)
• Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
• Wave number in reciprocal centimeters(wnumsum3)
• Wave number in reciprocal centimeters(wnumsum6)
• Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
• AERI LW Scene Brightness Temp Spectral Averages (Ch1)(SkyBrightnessTempSpectralAveragesCh1)
• AERI SW Scene Variability Spectral Averages (Ch2)(SkyVariabilityAveragesCh2)
• Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
  indicative of front end air flow.(frontEndFanAirTempDiff)
• Wave number in reciprocal centimeters(wnumsum7)
• Duration of scene view(sceneViewDuration)
• Wave number in reciprocal centimeters(wnumsum10)
• Wave number in reciprocal centimeters(wnumsum5)
• Wave number in reciprocal centimeters(wnumsum4)
• Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
• The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
  centered on the sky view(HBBtempDrift)
• Dummy altitude for Zeb(alt)
• Wave number in reciprocal centimeters(wnumsum12)
• Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
• Wave number in reciprocal centimeters(wnumsum13)
• Characteristic value representing overall longwave channel responsivity(LWresponsivity)
• AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectraAveragesCh2)
• Wave number in reciprocal centimeters(wnumsum14)
• Logical flag indicating whether shortwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using SWskyNEN and
  SWskyNENlimit.(SWskyNENacceptable)
• AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENCh2)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
• xxx(dataAvailable)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectraAveragesCh1)
• AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENCh1)
• Wave number in reciprocal centimeters(wnumsum9)
• Wave number in reciprocal centimeters(wnumsum8)
• The noise equivalent radiance observed in the longwave channel during a sky view
  at 1000 cm-1(LWskyNEN)
• Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
• Rain sensor analog output: the rain sensor is located inside the hatch near the
  sky aperture and is used to flag the critical condition of rain falling on
  the AERI s(rainSensorIntensity)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Wave number in reciprocal centimeters(wnumsum11)
• AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectraAveragesCh2)
• Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Observation longitude(Longitude)
• Observation latitude(Latitude)
• Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)

• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• Dummy altitude for Zeb(alt)
• Wave number(wnum)
• wavenumbers for standard deviation of radiance spectra(wnum2)
• AERI instrument unit serial number(AERIunitNumber)
• Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
• Time offset of tweaks from base_time(time_offset)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Character string containing instrument name(instrumentUnitNumber)
• Time (HHMMSS)(timeHHMMSS)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Observation Altitude(Altitude)
• base time(base_time)
• lon(lon)
• Mean of radiance spectra ensemble(mean_rad)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Duration of scene view(sceneViewDuration)
• Observation date(dateYYMMDD)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Observation latitude(Latitude)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Time at center of AERI sky observation period(Time)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• AERI instrument data channel number(channelNumber)
• Observation longitude(Longitude)
• lat(lat)
• Julian Day including day and fraction of day(JulianDay)
• Version number of Operational Software(systemReleaseNumber)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)

• null(Raw data stream - documentation not supported)

• Weight factor for bottom used in calculating ambient blackbody temperature
  average(ABBbottomTempWeight)
• Character string containing instrument name(instrumentUnitNumber)
• xxx(dataAvailable)
• Stirling cooler power supply temperature measured at power supply frame(coolerPowerSupplyTemp)
• Ambient blackbody temperature - apex(ABBapexTemp)
• Longwave elevated air brightness temperature from radiance average (700_705
  cm-1)(elevatedLayerAirTemp700_705)
• Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
• Imaginary radiance during sky view averaged over (675_680 cm-1)(skyViewImaginaryRadiance675_680)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
• AERI instrument unit serial number(AERIunitNumber)
• Scene mirror motor driver heat sink temperature(motorDriverTemp)
• Radiance standard deviation during ambient blackbody view averaged over
  (2282_2287 cm-1)(ABBviewStdDevRadiance2282_2287)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Shortwave surface air brightness temperature from radiance average (2295_2300
  cm-1)(surfaceLayerAirTemp2295_2300)
• Factor used to convert single-scan noise to two-minute equivalent(twoMinuteNoiseEstimateFactor)
• Interferometer window temperature measured on the outside of the aluminum window
  flange(interferometerWindowTemp)
• Ambient air temperature near blackbodies(airNearBBsTemp)
• Motor step value given to motor controller to achieve proper mirror positioning(sceneMirrorMotorStep)
• Original laser wavenumber assumed for this instrument(originalLaserWavenumber)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Ambient blackbody temperature - rim top(ABBtopTemp)
• Stirling cooler compressor temperature measured at compressor heatsink(coolerCompressorTemp)
• Observation latitude(Latitude)
• Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
• Radiance standard deviation during ambient blackbody view averaged over (675_680
  cm-1)(ABBviewStdDevRadiance675_680)
• Resistive temperature of 2500 Ohm fixed resistor - banana plug mounted(fixed2500ohmResistor)
• Imaginary radiance during sky view averaged over (700_705 cm-1)(skyViewImaginaryRadiance700_705)
• Blackbody controller Unit 1 power supply temperature(BBcontroller1temp)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• Relative humidity measured in the optics compartment atop the interferometer.(opticsCompartmentRelativeHumidity)
• Time offset of tweaks from base_time(time_offset)
• Field of view half angle used in finite FOV correction(FFOVhalfAngle)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
• Stirling cycle cooler current(coolerCurrent)
• Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
• Weight factor for apex used in calculating ambient blackbody temperature average(ABBapexTempWeight)
• Observation Altitude(Altitude)
• Scene mirror temperature as measured at the center of the back of the mirror(sceneMirrorTemp)
• Radiance standard deviation during hot blackbody view averaged over (675_680
  cm-1)(HBBviewStdDevRadiance675_680)
• Radiance standard deviation during hot blackbody view averaged over (700_705
  cm-1)(HBBviewStdDevRadiance700_705)
• AERI instrument data channel number(channelNumber)
• Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
• Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
• Detector temperature sensed via diode near detector(detectorTemp)
• Duration of scene view(sceneViewDuration)
• The noise equivalent radiance observed in the shortwave channel during a sky
  view at 2500 cm-1(SWskyNEN)
• Scene mirror position encoder value(sceneMirPosEncoder)
• Radiance standard deviation during hot blackbody view averaged over (2282_2287
  cm-1)(HBBviewStdDevRadiance2282_2287)
• Size of buffer holding expanded spectrum before interpolation(expandedInterferogramSize)
• Version number of Operational Software(systemReleaseNumber)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Imaginary radiance during sky view averaged over (2295_2300 cm-1)(skyViewImaginaryRadiance2295_2300)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Logical flag indicating whether HBB temperature is stable (true) or not stable
  (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
• Weight factor for bottom used in calculating hot blackbody temperature average(HBBbottomTempWeight)
• Imaginary radiance during sky view averaged over (2510_2515 cm-1)(skyViewImaginaryRadiance2510_2515)
• Radiance standard deviation during ambient blackbody view averaged over
  (2295_2300 cm-1)(ABBviewStdDevRadiance2295_2300)
• Limit applied to LWskyNEN in determination of LWskyNENacceptable(LWskyNENlimit)
• Weight factor for apex used in calculating hot blackbody temperature average(HBBapexTempWeight)
• Blackbody cavity geometry factor(BBcavityFactor)
• Resistive temperature of 12 Kohm fixed resistor located in SCE-P3 shell(fixed12KohmResistor)
• Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
• Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
• Shortwave elevated air brightness temperature from radiance average (2282_2287
  cm-1)(elevatedLayerAirTemp2282_2287)
• AERI ingest computer temperature measured at back panel of computer(computerTemp)
• Observation longitude(Longitude)
• Sun sensor analog output: The sun sensor has a view angle to the sky slightly
  larger than the interferometer FOV and is aligned to the interferometer
  line-of-sight. I(sunSensorIntensity)
• Logical flag indicating whether longwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using LWskyNEN and
  LWskyNENlimit.(LWskyNENacceptable)
• Stirling cycle cooler expander temperature(coolerExpanderTemp)
• Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
• Corrective offset for final ambient blackbody average temperature(ABBtempOffset)
• Radiance standard deviation during hot blackbody view averaged over (2510_2515
  cm-1)(HBBviewStdDevRadiance2510_2515)
• Ambient blackbody temperature(ABBbottomTemp)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Number of terms used in finite field of view correction(numberOfTerms)
• Observation date(dateYYMMDD)
• Corrective offset for final hot blackbody average temperature(HBBtempOffset)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Logical flag indicating whether shortwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using SWskyNEN and
  SWskyNENlimit.(SWskyNENacceptable)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
• Imaginary radiance during sky view averaged over (2282_2287 cm-1)(skyViewImaginaryRadiance2282_2287)
• Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
• Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
• Hot blackbody temperature - apex(HBBapexTemp)
• Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
• Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
• Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
• Spare temperature sensor (location TBD)(spareTemp)
• Radiance standard deviation during ambient blackbody view averaged over
  (2510_2515 cm-1)(ABBviewStdDevRadiance2510_2515)
• Time (HHMMSS)(timeHHMMSS)
• Interferometer front end fan airflow unheated temperature: used with heated
  temperature as measure of airflow.(frontEndFanAirUnheatedTemp)
• Rain sensor analog output: the rain sensor is located inside the hatch near the
  sky aperture and is used to flag the critical condition of rain falling on
  the AERI s(rainSensorIntensity)
• Julian Day including day and fraction of day(JulianDay)
• Time at center of AERI sky observation period(Time)
• Weight factor for top used in calculating ambient blackbody temperature average(ABBtopTempWeight)
• Resistive temperature of 97 Kohm fixed resistor located in SCE-P4 shell(fixed97KohmResistor)
• Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
• base time(base_time)
• Dummy altitude for Zeb(alt)
• Hot blackbody temperature - rim bottom(HBBbottomTemp)
• The noise equivalent radiance observed in the longwave channel during a sky view
  at 1000 cm-1(LWskyNEN)
• Weight factor for top used in calculating hot blackbody temperature average(HBBtopTempWeight)
• Hot blackbody temperature - rim top(HBBtopTemp)
• Number of views in a sequence(sceneMirPosCount)
• Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
• Size of buffer holding initial spectrum(originalInterferogramSize)
• Ambient air temperature near the interferometer(airNearInterferometerTemp)
• Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
• Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
• lon(lon)
• The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
  centered on the sky view(HBBtempDrift)
• Radiance standard deviation during hot blackbody view averaged over (2295_2300
  cm-1)(HBBviewStdDevRadiance2295_2300)
• Radiance standard deviation during hot blackbody view averaged over (985_990
  cm-1)(HBBviewStdDevRadiance985_990)
• Instrument scene mirror position identifier(sceneMirrorPosition)
• Radiance standard deviation during ambient blackbody view averaged over (985_990
  cm-1)(ABBviewStdDevRadiance985_990)
• Laser wavenumber used in definition of output wavenumber scale(outputLaserWavenumber)
• Limit applied to SWskyNEN in determination of SWskyNENacceptable(SWskyNENlimit)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• Blackbody controller Unit 2 power supply temperature(BBcontroller2temp)
• Radiance standard deviation during ambient blackbody view averaged over (700_705
  cm-1)(ABBviewStdDevRadiance700_705)
• Signal conditioning electronics inside air temperature(SCEtemp)
• Imaginary radiance during sky view averaged over (985_990 cm-1)(skyViewImaginaryRadiance985_990)
• Relative Humidity measured in the Interferometer Enclosure(interferometerEnclosureRelativeHumidity)
• Interferometer front end fan airflow heated temperature: used with unheated
  temperature as measure of airflow.(frontEndFanAirHeatedTemp)
• Limit applied to HBBtempDrift in determination of HBBstable flag(HBBtempDriftLimit)
• Scene mirror motor case temperature(mirrorMotorTemp)
• AERI interferometer temperature at second port(interferometerSecondPortTemp)
• lat(lat)
• Electronics rack ambient temperature measured at inside top of rack(rackAmbientTemp)
• Characteristic value representing overall longwave channel responsivity(LWresponsivity)
• Number of complete (forward+backward) interferogram scans in sample average(coadditionsCount)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
  indicative of front end air flow.(frontEndFanAirTempDiff)
• Difference between actual and ideal motor encoder values for current view
  indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
• Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)

• lon(lon)
• Wave number(wnum)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Observation date(dateYYMMDD)
• Dummy altitude for Zeb(alt)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Duration of scene view(sceneViewDuration)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Mean of radiance spectra ensemble(mean_rad)
• Time offset of tweaks from base_time(time_offset)
• Observation longitude(Longitude)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• BB Support Structure Temperature(BBsupportStructureTemp)
• base time(base_time)
• Time (HHMMSS)(timeHHMMSS)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• wavenumbers for standard deviation of radiance spectra(wnum2)
• Observation latitude(Latitude)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• AERI instrument data channel number(channelNumber)
• Julian Day including day and fraction of day(JulianDay)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Version number of Operational Software(systemReleaseNumber)
• Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Character string containing instrument name(instrumentUnitNumber)
• Time at center of AERI sky observation period(Time)
• Observation Altitude(Altitude)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• lat(lat)
• AERI instrument unit serial number(AERIunitNumber)