Data Quality Reports for Session: 127616 User: czhao1 Completed: 05/07/2010

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D020823.20NSA/AERI/C1 - AERI Detector Cooler Failurensaaerich1C1.a1, nsaaerich2C1.a1, nsaaeriengineerC1.a1, nsaaerisummaryC1.a1
D020823.25NSA/AERI/C1 - Loss of Temperature Stabilizationnsaaerich1C1.a1, nsaaerich2C1.a1, nsaaeriengineerC1.a1, nsaaerisummaryC1.a1
D020823.27NSA/AERI/C1 - External Temperature Sensor Failednsaaerich1C1.a1, nsaaerich2C1.a1, nsaaeriengineerC1.a1, nsaaerisummaryC1.a1
D021113.6NSA/AERI/C1 - AERI extended range detector at Barrownsaaerich1C1.a1, nsaaerich2C1.a1, nsaaeriengineerC1.a1, nsaaerisummaryC1.a1
D030203.1NSA/AERI/C1 - Failure of AERI cryogenic coolernsaaeriC1.00, nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaeriengineerC1.a1, nsaaerisummaryC1.a1
D030203.2NSA/AERI/C1 - Failure of AERI cryogenic coolernsaaerich1C1.a1, nsaaerich2C1.a1, nsaaeriengineerC1.a1, nsaaerisummaryC1.a1


DQRID : D020823.20
Start DateStart TimeEnd DateEnd Time
10/18/2001000010/24/20012359
Subject:
NSA/AERI/C1 - AERI Detector Cooler Failure
DataStreams:nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaeriengineerC1.a1, nsaaerisummaryC1.a1
Description:
.The data is very noisy due to failure of the detector
cooler to keep the detector at the set temperature.
Measurements:nsaaerich2C1.a1:
  • Logical flag indicating that a data record is missing (true/false(missingDataFlag)
  • Time at center of AERI sky observation period(Time)
  • Julian Day including day and fraction of day(JulianDay)
  • Hot blackbody temperature used in calibration(calibrationHBBtemp)
  • AERI instrument unit serial number(AERIunitNumber)
  • base time(base_time)
  • Ambient air temperature at hatch opening(outsideAirTemp)
  • Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
  • Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
  • Wave number(wnum)
  • Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
  • Character string containing instrument name(instrumentUnitNumber)
  • Observation latitude(Latitude)
  • wavenumbers for standard deviation of radiance spectra(wnum2)
  • Mean of radiance spectra ensemble(mean_rad)
  • Cold blackbody temperature used in calibration(calibrationCBBtemp)
  • lat(lat)
  • Time (HHMMSS)(timeHHMMSS)
  • Dummy altitude for Zeb(alt)
  • Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
  • lon(lon)
  • Observation Altitude(Altitude)
  • Time offset of tweaks from base_time(time_offset)
  • Observation atmospheric pressure in AERI electronics(atmosphericPressure)
  • Scene mirror view angle in non-negative degrees, measured clockwise looking into
    interferometer window.(sceneMirrorAngle)
  • Observation date(dateYYMMDD)
  • Version number of Operational Software(systemReleaseNumber)
  • Duration of scene view(sceneViewDuration)
  • 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)
  • BB Support Structure Temperature(BBsupportStructureTemp)
  • AERI instrument data channel number(channelNumber)
  • Ambient temperature used in calibration(calibrationAmbientTemp)
  • Observation longitude(Longitude)
nsaaerisummaryC1.a1:
  • Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
  • AERI LW Scene Variability Spectral Averages (Ch1)(SkyVariabilityAveragesCh1)
  • AERI SW Scene Variability Spectral Averages (Ch2)(SkyVariabilityAveragesCh2)
  • Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
  • Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
  • Dummy altitude for Zeb(alt)
  • 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)
  • AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENEstimateNo1ch2)
  • AERI SW Scene Variability Spectral Averages (Ch2)(SkyUniformityCh2)
  • AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENEstimateNo1ch1)
  • AERI LW Scene Variability Spectral Averages (Ch1)(SkyUniformityCh1)
  • Logical flag indicating whether shortwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using SWskyNEN and
    SWskyNENlimit.(SWskyNENacceptable)
  • AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectraAveragesCh2)
  • AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectraAveragesCh1)
  • Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
  • Wave number in reciprocal centimeters(wnumsum2)
  • Wave number in reciprocal centimeters(wnumsum1)
  • Wave number in reciprocal centimeters(wnumsum4)
  • Wave number in reciprocal centimeters(wnumsum3)
  • Wave number in reciprocal centimeters(wnumsum6)
  • Wave number in reciprocal centimeters(wnumsum5)
  • Wave number in reciprocal centimeters(wnumsum8)
  • Wave number in reciprocal centimeters(wnumsum7)
  • Wave number in reciprocal centimeters(wnumsum9)
  • Observation Altitude(Altitude)
  • Shortwave surface air brightness temperature from radiance average (2295_2300
    cm-1)(surfaceLayerAirTemp2295_2300)
  • Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
  • Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
  • Julian Day including day and fraction of day(JulianDay)
  • 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)
  • Version number of Operational Software(systemReleaseNumber)
  • Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
  • The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
    centered on the sky view(HBBtempDrift)
  • AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENCh2)
  • AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENCh1)
  • Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
  • Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
  • AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
  • AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectralAveragesCh2)
  • AERI SW Scene Variability Spectral Averages (Ch2)(SkyVariabilityCh2)
  • AERI LW Scene Variability Spectral Averages (Ch1)(SkyVariabilityCh1)
  • xxx(dataAvailable)
  • Time at center of AERI sky observation period(Time)
  • Scene mirror view angle in non-negative degrees, measured clockwise looking into
    interferometer window.(sceneMirrorAngle)
  • Difference between actual and ideal motor encoder values for current view
    indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
  • The noise equivalent radiance observed in the longwave channel during a sky view
    at 1000 cm-1(LWskyNEN)
  • base time(base_time)
  • Time (HHMMSS)(timeHHMMSS)
  • Duration of scene view(sceneViewDuration)
  • Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
  • Observation date(dateYYMMDD)
  • Time offset of tweaks from base_time(time_offset)
  • 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)
  • Cold blackbody temperature used in calibration(calibrationCBBtemp)
  • Ambient temperature used in calibration(calibrationAmbientTemp)
  • AERI instrument data channel number(channelNumber)
  • Observation longitude(Longitude)
  • 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)
  • Logical flag indicating whether longwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using LWskyNEN and
    LWskyNENlimit.(LWskyNENacceptable)
  • AERI instrument unit serial number(AERIunitNumber)
  • Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
  • Observation atmospheric pressure in AERI electronics(atmosphericPressure)
  • Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
  • AERI LW Scene Brightness Temp Spectral Averages (Ch1)(SkyBrightnessTempSpectralAveragesCh1)
  • Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
  • Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
  • AERI SW Scene Brightness Temp Spectral Averages (Ch2)(SkyBrightnessTempSpectralAveragesCh2)
  • AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENEstimateNo2ch1)
  • AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENEstimateNo2ch2)
  • Observation latitude(Latitude)
  • Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
  • Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
  • AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectraAveragesCh2)
  • AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectraAveragesCh1)
  • Characteristic value representing overall longwave channel responsivity(LWresponsivity)
  • Shortwave elevated air brightness temperature from radiance average (2282_2287
    cm-1)(elevatedLayerAirTemp2282_2287)
  • Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
  • AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENch1)
  • Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
  • AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENch2)
  • Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
    indicative of front end air flow.(frontEndFanAirTempDiff)
  • Wave number in reciprocal centimeters(wnumsum13)
  • Wave number in reciprocal centimeters(wnumsum12)
  • Wave number in reciprocal centimeters(wnumsum11)
  • Hot blackbody temperature used in calibration(calibrationHBBtemp)
  • Wave number in reciprocal centimeters(wnumsum10)
  • Wave number in reciprocal centimeters(wnumsum14)
  • AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENEstimateNo1Ch1)
  • AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENEstimateNo1Ch2)
  • Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
  • Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
  • Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
  • Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
  • lon(lon)
  • Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
  • Longwave elevated air brightness temperature from radiance average (700_705
    cm-1)(elevatedLayerAirTemp700_705)
  • Logical flag indicating whether HBB temperature is stable (true) or not stable
    (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
  • 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)
  • AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENEstimateNo2Ch1)
  • AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENEstimateNo2Ch2)
  • lat(lat)
  • AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectralAveragesCh2)
  • AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectralAveragesCh1)
  • AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENestimateNo2Ch2)
  • Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
  • AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENestimateNo2Ch1)
  • Character string containing instrument name(instrumentUnitNumber)
nsaaerich1C1.a1:
  • Julian Day including day and fraction of day(JulianDay)
  • 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 at center of AERI sky observation period(Time)
  • Time (HHMMSS)(timeHHMMSS)
  • Version number of Operational Software(systemReleaseNumber)
  • Time offset of tweaks from base_time(time_offset)
  • Duration of scene view(sceneViewDuration)
  • BB Support Structure Temperature(BBsupportStructureTemp)
  • Observation longitude(Longitude)
  • wavenumbers for standard deviation of radiance spectra(wnum2)
  • Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
  • Cold blackbody temperature used in calibration(calibrationCBBtemp)
  • Observation atmospheric pressure in AERI electronics(atmosphericPressure)
  • Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
  • Ambient air temperature at hatch opening(outsideAirTemp)
  • Mean of radiance spectra ensemble(mean_rad)
  • Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
  • Observation Altitude(Altitude)
  • Observation date(dateYYMMDD)
  • Logical flag indicating that a data record is missing (true/false(missingDataFlag)
  • base time(base_time)
  • Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
  • Dummy altitude for Zeb(alt)
  • Scene mirror view angle in non-negative degrees, measured clockwise looking into
    interferometer window.(sceneMirrorAngle)
  • AERI instrument unit serial number(AERIunitNumber)
  • lat(lat)
  • lon(lon)
  • Observation latitude(Latitude)
  • AERI instrument data channel number(channelNumber)
  • Character string containing instrument name(instrumentUnitNumber)
  • Wave number(wnum)
  • Ambient temperature used in calibration(calibrationAmbientTemp)
  • Hot blackbody temperature used in calibration(calibrationHBBtemp)
nsaaeriengineerC1.a1:
  • Motor step value given to motor controller to achieve proper mirror positioning(sceneMirrorMotorStep)
  • Time (HHMMSS)(timeHHMMSS)
  • Scene mirror temperature as measured at the center of the back of the mirror(sceneMirrorTemp)
  • Ambient air temperature near blackbodies(airNearBBsTemp)
  • Scene mirror view angle in non-negative degrees, measured clockwise looking into
    interferometer window.(sceneMirrorAngle)
  • base time(base_time)
  • Stirling cycle cooler current(coolerCurrent)
  • Relative Humidity measured in the Interferometer Enclosure(interferometerEnclosureRelativeHumidity)
  • Blackbody controller Unit 1 power supply temperature(BBcontroller1temp)
  • 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)
  • Electronics rack ambient temperature measured at inside top of rack(rackAmbientTemp)
  • Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
  • Stirling cycle cooler expander temperature(coolerExpanderTemp)
  • 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)
  • Number of terms used in finite field of view correction(numberOfTerms)
  • Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
  • Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
  • AERI instrument data channel number(channelNumber)
  • Logical flag indicating whether HBB temperature is stable (true) or not stable
    (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
  • Resistive temperature of 12 Kohm fixed resistor located in SCE-P3 shell(fixed12KohmResistor)
  • The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
    centered on the sky view(HBBtempDrift)
  • Observation date(dateYYMMDD)
  • Ambient blackbody temperature - rim top(ABBtopTemp)
  • Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
  • Longwave elevated air brightness temperature from radiance average (700_705
    cm-1)(elevatedLayerAirTemp700_705)
  • Interferometer front end fan airflow heated temperature: used with unheated
    temperature as measure of airflow.(frontEndFanAirHeatedTemp)
  • Original laser wavenumber assumed for this instrument(originalLaserWavenumber)
  • Interferometer window temperature measured on the outside of the aluminum window
    flange(interferometerWindowTemp)
  • Relative humidity measured in the optics compartment atop the interferometer.(opticsCompartmentRelativeHumidity)
  • Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
  • 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)
  • Character string containing instrument name(instrumentUnitNumber)
  • Radiance standard deviation during ambient blackbody view averaged over (700_705
    cm-1)(ABBviewStdDevRadiance700_705)
  • Detector temperature sensed via diode near detector(detectorTemp)
  • Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
  • Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
  • Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
  • Cold blackbody temperature used in calibration(calibrationCBBtemp)
  • BB Support Structure Temperature(BBsupportStructureTemp)
  • Weight factor for apex used in calculating ambient blackbody temperature average(ABBapexTempWeight)
  • xxx(dataAvailable)
  • Observation latitude(Latitude)
  • Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
  • Size of buffer holding initial spectrum(originalInterferogramSize)
  • Ambient temperature used in calibration(calibrationAmbientTemp)
  • Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
  • Hot blackbody temperature - rim top(HBBtopTemp)
  • Hot blackbody temperature used in calibration(calibrationHBBtemp)
  • Imaginary radiance during sky view averaged over (675_680 cm-1)(skyViewImaginaryRadiance675_680)
  • Radiance standard deviation during hot blackbody view averaged over (675_680
    cm-1)(HBBviewStdDevRadiance675_680)
  • Shortwave elevated air brightness temperature from radiance average (2282_2287
    cm-1)(elevatedLayerAirTemp2282_2287)
  • Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
  • Radiance standard deviation during ambient blackbody view averaged over
    (2295_2300 cm-1)(ABBviewStdDevRadiance2295_2300)
  • Hot blackbody temperature - apex(HBBapexTemp)
  • Logical flag indicating that a data record is missing (true/false(missingDataFlag)
  • Limit applied to HBBtempDrift in determination of HBBstable flag(HBBtempDriftLimit)
  • Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
  • Blackbody controller Unit 2 power supply temperature(BBcontroller2temp)
  • Time at center of AERI sky observation period(Time)
  • Instrument scene mirror position identifier(sceneMirrorPosition)
  • Resistive temperature of 97 Kohm fixed resistor located in SCE-P4 shell(fixed97KohmResistor)
  • Stirling cooler compressor temperature measured at compressor heatsink(coolerCompressorTemp)
  • Observation longitude(Longitude)
  • Logical flag indicating whether shortwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using SWskyNEN and
    SWskyNENlimit.(SWskyNENacceptable)
  • Ambient blackbody temperature(ABBbottomTemp)
  • 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)
  • Weight factor for bottom used in calculating hot blackbody temperature average(HBBbottomTempWeight)
  • Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
  • Radiance standard deviation during hot blackbody view averaged over (700_705
    cm-1)(HBBviewStdDevRadiance700_705)
  • AERI interferometer temperature at second port(interferometerSecondPortTemp)
  • Ambient blackbody temperature - apex(ABBapexTemp)
  • Scene mirror motor case temperature(mirrorMotorTemp)
  • Limit applied to LWskyNEN in determination of LWskyNENacceptable(LWskyNENlimit)
  • Radiance standard deviation during ambient blackbody view averaged over (985_990
    cm-1)(ABBviewStdDevRadiance985_990)
  • Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
  • Hot blackbody temperature - rim bottom(HBBbottomTemp)
  • Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
  • Weight factor for apex used in calculating hot blackbody temperature average(HBBapexTempWeight)
  • Factor used to convert single-scan noise to two-minute equivalent(twoMinuteNoiseEstimateFactor)
  • Observation atmospheric pressure in AERI electronics(atmosphericPressure)
  • Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
    indicative of front end air flow.(frontEndFanAirTempDiff)
  • Dummy altitude for Zeb(alt)
  • Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
  • Logical flag indicating whether longwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using LWskyNEN and
    LWskyNENlimit.(LWskyNENacceptable)
  • Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
  • Shortwave surface air brightness temperature from radiance average (2295_2300
    cm-1)(surfaceLayerAirTemp2295_2300)
  • Radiance standard deviation during hot blackbody view averaged over (2282_2287
    cm-1)(HBBviewStdDevRadiance2282_2287)
  • Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
  • Imaginary radiance during sky view averaged over (2282_2287 cm-1)(skyViewImaginaryRadiance2282_2287)
  • Radiance standard deviation during ambient blackbody view averaged over
    (2282_2287 cm-1)(ABBviewStdDevRadiance2282_2287)
  • Imaginary radiance during sky view averaged over (2510_2515 cm-1)(skyViewImaginaryRadiance2510_2515)
  • Time offset of tweaks from base_time(time_offset)
  • AERI instrument unit serial number(AERIunitNumber)
  • Radiance standard deviation during hot blackbody view averaged over (2295_2300
    cm-1)(HBBviewStdDevRadiance2295_2300)
  • AERI ingest computer temperature measured at back panel of computer(computerTemp)
  • Spare temperature sensor (location TBD)(spareTemp)
  • Scene mirror motor driver heat sink temperature(motorDriverTemp)
  • Corrective offset for final ambient blackbody average temperature(ABBtempOffset)
  • Radiance standard deviation during hot blackbody view averaged over (2510_2515
    cm-1)(HBBviewStdDevRadiance2510_2515)
  • Version number of Operational Software(systemReleaseNumber)
  • Ambient air temperature near the interferometer(airNearInterferometerTemp)
  • Signal conditioning electronics inside air temperature(SCEtemp)
  • Laser wavenumber used in definition of output wavenumber scale(outputLaserWavenumber)
  • Limit applied to SWskyNEN in determination of SWskyNENacceptable(SWskyNENlimit)
  • Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
  • Duration of scene view(sceneViewDuration)
  • Weight factor for top used in calculating ambient blackbody temperature average(ABBtopTempWeight)
  • Number of views in a sequence(sceneMirPosCount)
  • Field of view half angle used in finite FOV correction(FFOVhalfAngle)
  • Imaginary radiance during sky view averaged over (985_990 cm-1)(skyViewImaginaryRadiance985_990)
  • Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
  • Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
  • lon(lon)
  • Weight factor for bottom used in calculating ambient blackbody temperature
    average(ABBbottomTempWeight)
  • Observation Altitude(Altitude)
  • Weight factor for top used in calculating hot blackbody temperature average(HBBtopTempWeight)
  • Radiance standard deviation during hot blackbody view averaged over (985_990
    cm-1)(HBBviewStdDevRadiance985_990)
  • Difference between actual and ideal motor encoder values for current view
    indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
  • Blackbody cavity geometry factor(BBcavityFactor)
  • Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
  • Radiance standard deviation during ambient blackbody view averaged over (675_680
    cm-1)(ABBviewStdDevRadiance675_680)
  • Size of buffer holding expanded spectrum before interpolation(expandedInterferogramSize)
  • Julian Day including day and fraction of day(JulianDay)
  • The noise equivalent radiance observed in the shortwave channel during a sky
    view at 2500 cm-1(SWskyNEN)
  • Corrective offset for final hot blackbody average temperature(HBBtempOffset)
  • Imaginary radiance during sky view averaged over (700_705 cm-1)(skyViewImaginaryRadiance700_705)
  • Resistive temperature of 2500 Ohm fixed resistor - banana plug mounted(fixed2500ohmResistor)
  • Characteristic value representing overall longwave channel responsivity(LWresponsivity)
  • The noise equivalent radiance observed in the longwave channel during a sky view
    at 1000 cm-1(LWskyNEN)
  • Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
  • Number of complete (forward+backward) interferogram scans in sample average(coadditionsCount)
  • Stirling cooler power supply temperature measured at power supply frame(coolerPowerSupplyTemp)
  • lat(lat)
  • Scene mirror position encoder value(sceneMirPosEncoder)
  • Imaginary radiance during sky view averaged over (2295_2300 cm-1)(skyViewImaginaryRadiance2295_2300)
  • Ambient air temperature at hatch opening(outsideAirTemp)

Back To Table of Contents

DQRID : D020823.25
Start DateStart TimeEnd DateEnd Time
04/19/2001170004/30/20012359
Subject:
NSA/AERI/C1 - Loss of Temperature Stabilization
DataStreams:nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaeriengineerC1.a1, nsaaerisummaryC1.a1
Description:
Instrument lost temperature stabilization on 4/19 @ 1700 and data became
very noisy and was shut down at 2300 (GMT). Turned back on 4/21 still look like detector 
temperature is to high, data very noisy. Production of good data resumed on 05/01/01.
Measurements:nsaaerich2C1.a1:
  • Logical flag indicating that a data record is missing (true/false(missingDataFlag)
  • Time at center of AERI sky observation period(Time)
  • Julian Day including day and fraction of day(JulianDay)
  • Hot blackbody temperature used in calibration(calibrationHBBtemp)
  • AERI instrument unit serial number(AERIunitNumber)
  • base time(base_time)
  • Ambient air temperature at hatch opening(outsideAirTemp)
  • Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
  • Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
  • Wave number(wnum)
  • Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
  • Character string containing instrument name(instrumentUnitNumber)
  • Observation latitude(Latitude)
  • wavenumbers for standard deviation of radiance spectra(wnum2)
  • Mean of radiance spectra ensemble(mean_rad)
  • Cold blackbody temperature used in calibration(calibrationCBBtemp)
  • lat(lat)
  • Time (HHMMSS)(timeHHMMSS)
  • Dummy altitude for Zeb(alt)
  • Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
  • lon(lon)
  • Observation Altitude(Altitude)
  • Time offset of tweaks from base_time(time_offset)
  • Observation atmospheric pressure in AERI electronics(atmosphericPressure)
  • Scene mirror view angle in non-negative degrees, measured clockwise looking into
    interferometer window.(sceneMirrorAngle)
  • Observation date(dateYYMMDD)
  • Version number of Operational Software(systemReleaseNumber)
  • Duration of scene view(sceneViewDuration)
  • 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)
  • BB Support Structure Temperature(BBsupportStructureTemp)
  • AERI instrument data channel number(channelNumber)
  • Ambient temperature used in calibration(calibrationAmbientTemp)
  • Observation longitude(Longitude)
nsaaerisummaryC1.a1:
  • Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
  • AERI LW Scene Variability Spectral Averages (Ch1)(SkyVariabilityAveragesCh1)
  • AERI SW Scene Variability Spectral Averages (Ch2)(SkyVariabilityAveragesCh2)
  • Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
  • Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
  • Dummy altitude for Zeb(alt)
  • 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)
  • AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENEstimateNo1ch2)
  • AERI SW Scene Variability Spectral Averages (Ch2)(SkyUniformityCh2)
  • AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENEstimateNo1ch1)
  • AERI LW Scene Variability Spectral Averages (Ch1)(SkyUniformityCh1)
  • Logical flag indicating whether shortwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using SWskyNEN and
    SWskyNENlimit.(SWskyNENacceptable)
  • AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectraAveragesCh2)
  • AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectraAveragesCh1)
  • Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
  • Wave number in reciprocal centimeters(wnumsum2)
  • Wave number in reciprocal centimeters(wnumsum1)
  • Wave number in reciprocal centimeters(wnumsum4)
  • Wave number in reciprocal centimeters(wnumsum3)
  • Wave number in reciprocal centimeters(wnumsum6)
  • Wave number in reciprocal centimeters(wnumsum5)
  • Wave number in reciprocal centimeters(wnumsum8)
  • Wave number in reciprocal centimeters(wnumsum7)
  • Wave number in reciprocal centimeters(wnumsum9)
  • Observation Altitude(Altitude)
  • Shortwave surface air brightness temperature from radiance average (2295_2300
    cm-1)(surfaceLayerAirTemp2295_2300)
  • Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
  • Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
  • Julian Day including day and fraction of day(JulianDay)
  • 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)
  • Version number of Operational Software(systemReleaseNumber)
  • Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
  • The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
    centered on the sky view(HBBtempDrift)
  • AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENCh2)
  • AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENCh1)
  • Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
  • Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
  • AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
  • AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectralAveragesCh2)
  • AERI SW Scene Variability Spectral Averages (Ch2)(SkyVariabilityCh2)
  • AERI LW Scene Variability Spectral Averages (Ch1)(SkyVariabilityCh1)
  • xxx(dataAvailable)
  • Time at center of AERI sky observation period(Time)
  • Scene mirror view angle in non-negative degrees, measured clockwise looking into
    interferometer window.(sceneMirrorAngle)
  • Difference between actual and ideal motor encoder values for current view
    indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
  • The noise equivalent radiance observed in the longwave channel during a sky view
    at 1000 cm-1(LWskyNEN)
  • base time(base_time)
  • Time (HHMMSS)(timeHHMMSS)
  • Duration of scene view(sceneViewDuration)
  • Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
  • Observation date(dateYYMMDD)
  • Time offset of tweaks from base_time(time_offset)
  • 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)
  • Cold blackbody temperature used in calibration(calibrationCBBtemp)
  • Ambient temperature used in calibration(calibrationAmbientTemp)
  • AERI instrument data channel number(channelNumber)
  • Observation longitude(Longitude)
  • 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)
  • Logical flag indicating whether longwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using LWskyNEN and
    LWskyNENlimit.(LWskyNENacceptable)
  • AERI instrument unit serial number(AERIunitNumber)
  • Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
  • Observation atmospheric pressure in AERI electronics(atmosphericPressure)
  • Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
  • AERI LW Scene Brightness Temp Spectral Averages (Ch1)(SkyBrightnessTempSpectralAveragesCh1)
  • Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
  • Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
  • AERI SW Scene Brightness Temp Spectral Averages (Ch2)(SkyBrightnessTempSpectralAveragesCh2)
  • AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENEstimateNo2ch1)
  • AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENEstimateNo2ch2)
  • Observation latitude(Latitude)
  • Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
  • Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
  • AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectraAveragesCh2)
  • AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectraAveragesCh1)
  • Characteristic value representing overall longwave channel responsivity(LWresponsivity)
  • Shortwave elevated air brightness temperature from radiance average (2282_2287
    cm-1)(elevatedLayerAirTemp2282_2287)
  • Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
  • AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENch1)
  • Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
  • AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENch2)
  • Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
    indicative of front end air flow.(frontEndFanAirTempDiff)
  • Wave number in reciprocal centimeters(wnumsum13)
  • Wave number in reciprocal centimeters(wnumsum12)
  • Wave number in reciprocal centimeters(wnumsum11)
  • Hot blackbody temperature used in calibration(calibrationHBBtemp)
  • Wave number in reciprocal centimeters(wnumsum10)
  • Wave number in reciprocal centimeters(wnumsum14)
  • AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENEstimateNo1Ch1)
  • AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENEstimateNo1Ch2)
  • Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
  • Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
  • Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
  • Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
  • lon(lon)
  • Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
  • Longwave elevated air brightness temperature from radiance average (700_705
    cm-1)(elevatedLayerAirTemp700_705)
  • Logical flag indicating whether HBB temperature is stable (true) or not stable
    (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
  • 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)
  • AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENEstimateNo2Ch1)
  • AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENEstimateNo2Ch2)
  • lat(lat)
  • AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectralAveragesCh2)
  • AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectralAveragesCh1)
  • AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENestimateNo2Ch2)
  • Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
  • AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENestimateNo2Ch1)
  • Character string containing instrument name(instrumentUnitNumber)
nsaaerich1C1.a1:
  • Julian Day including day and fraction of day(JulianDay)
  • 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 at center of AERI sky observation period(Time)
  • Time (HHMMSS)(timeHHMMSS)
  • Version number of Operational Software(systemReleaseNumber)
  • Time offset of tweaks from base_time(time_offset)
  • Duration of scene view(sceneViewDuration)
  • BB Support Structure Temperature(BBsupportStructureTemp)
  • Observation longitude(Longitude)
  • wavenumbers for standard deviation of radiance spectra(wnum2)
  • Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
  • Cold blackbody temperature used in calibration(calibrationCBBtemp)
  • Observation atmospheric pressure in AERI electronics(atmosphericPressure)
  • Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
  • Ambient air temperature at hatch opening(outsideAirTemp)
  • Mean of radiance spectra ensemble(mean_rad)
  • Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
  • Observation Altitude(Altitude)
  • Observation date(dateYYMMDD)
  • Logical flag indicating that a data record is missing (true/false(missingDataFlag)
  • base time(base_time)
  • Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
  • Dummy altitude for Zeb(alt)
  • Scene mirror view angle in non-negative degrees, measured clockwise looking into
    interferometer window.(sceneMirrorAngle)
  • AERI instrument unit serial number(AERIunitNumber)
  • lat(lat)
  • lon(lon)
  • Observation latitude(Latitude)
  • AERI instrument data channel number(channelNumber)
  • Character string containing instrument name(instrumentUnitNumber)
  • Wave number(wnum)
  • Ambient temperature used in calibration(calibrationAmbientTemp)
  • Hot blackbody temperature used in calibration(calibrationHBBtemp)
nsaaeriengineerC1.a1:
  • Motor step value given to motor controller to achieve proper mirror positioning(sceneMirrorMotorStep)
  • Time (HHMMSS)(timeHHMMSS)
  • Scene mirror temperature as measured at the center of the back of the mirror(sceneMirrorTemp)
  • Ambient air temperature near blackbodies(airNearBBsTemp)
  • Scene mirror view angle in non-negative degrees, measured clockwise looking into
    interferometer window.(sceneMirrorAngle)
  • base time(base_time)
  • Stirling cycle cooler current(coolerCurrent)
  • Relative Humidity measured in the Interferometer Enclosure(interferometerEnclosureRelativeHumidity)
  • Blackbody controller Unit 1 power supply temperature(BBcontroller1temp)
  • 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)
  • Electronics rack ambient temperature measured at inside top of rack(rackAmbientTemp)
  • Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
  • Stirling cycle cooler expander temperature(coolerExpanderTemp)
  • 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)
  • Number of terms used in finite field of view correction(numberOfTerms)
  • Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
  • Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
  • AERI instrument data channel number(channelNumber)
  • Logical flag indicating whether HBB temperature is stable (true) or not stable
    (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
  • Resistive temperature of 12 Kohm fixed resistor located in SCE-P3 shell(fixed12KohmResistor)
  • The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
    centered on the sky view(HBBtempDrift)
  • Observation date(dateYYMMDD)
  • Ambient blackbody temperature - rim top(ABBtopTemp)
  • Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
  • Longwave elevated air brightness temperature from radiance average (700_705
    cm-1)(elevatedLayerAirTemp700_705)
  • Interferometer front end fan airflow heated temperature: used with unheated
    temperature as measure of airflow.(frontEndFanAirHeatedTemp)
  • Original laser wavenumber assumed for this instrument(originalLaserWavenumber)
  • Interferometer window temperature measured on the outside of the aluminum window
    flange(interferometerWindowTemp)
  • Relative humidity measured in the optics compartment atop the interferometer.(opticsCompartmentRelativeHumidity)
  • Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
  • 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)
  • Character string containing instrument name(instrumentUnitNumber)
  • Radiance standard deviation during ambient blackbody view averaged over (700_705
    cm-1)(ABBviewStdDevRadiance700_705)
  • Detector temperature sensed via diode near detector(detectorTemp)
  • Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
  • Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
  • Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
  • Cold blackbody temperature used in calibration(calibrationCBBtemp)
  • BB Support Structure Temperature(BBsupportStructureTemp)
  • Weight factor for apex used in calculating ambient blackbody temperature average(ABBapexTempWeight)
  • xxx(dataAvailable)
  • Observation latitude(Latitude)
  • Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
  • Size of buffer holding initial spectrum(originalInterferogramSize)
  • Ambient temperature used in calibration(calibrationAmbientTemp)
  • Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
  • Hot blackbody temperature - rim top(HBBtopTemp)
  • Hot blackbody temperature used in calibration(calibrationHBBtemp)
  • Imaginary radiance during sky view averaged over (675_680 cm-1)(skyViewImaginaryRadiance675_680)
  • Radiance standard deviation during hot blackbody view averaged over (675_680
    cm-1)(HBBviewStdDevRadiance675_680)
  • Shortwave elevated air brightness temperature from radiance average (2282_2287
    cm-1)(elevatedLayerAirTemp2282_2287)
  • Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
  • Radiance standard deviation during ambient blackbody view averaged over
    (2295_2300 cm-1)(ABBviewStdDevRadiance2295_2300)
  • Hot blackbody temperature - apex(HBBapexTemp)
  • Logical flag indicating that a data record is missing (true/false(missingDataFlag)
  • Limit applied to HBBtempDrift in determination of HBBstable flag(HBBtempDriftLimit)
  • Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
  • Blackbody controller Unit 2 power supply temperature(BBcontroller2temp)
  • Time at center of AERI sky observation period(Time)
  • Instrument scene mirror position identifier(sceneMirrorPosition)
  • Resistive temperature of 97 Kohm fixed resistor located in SCE-P4 shell(fixed97KohmResistor)
  • Stirling cooler compressor temperature measured at compressor heatsink(coolerCompressorTemp)
  • Observation longitude(Longitude)
  • Logical flag indicating whether shortwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using SWskyNEN and
    SWskyNENlimit.(SWskyNENacceptable)
  • Ambient blackbody temperature(ABBbottomTemp)
  • 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)
  • Weight factor for bottom used in calculating hot blackbody temperature average(HBBbottomTempWeight)
  • Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
  • Radiance standard deviation during hot blackbody view averaged over (700_705
    cm-1)(HBBviewStdDevRadiance700_705)
  • AERI interferometer temperature at second port(interferometerSecondPortTemp)
  • Ambient blackbody temperature - apex(ABBapexTemp)
  • Scene mirror motor case temperature(mirrorMotorTemp)
  • Limit applied to LWskyNEN in determination of LWskyNENacceptable(LWskyNENlimit)
  • Radiance standard deviation during ambient blackbody view averaged over (985_990
    cm-1)(ABBviewStdDevRadiance985_990)
  • Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
  • Hot blackbody temperature - rim bottom(HBBbottomTemp)
  • Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
  • Weight factor for apex used in calculating hot blackbody temperature average(HBBapexTempWeight)
  • Factor used to convert single-scan noise to two-minute equivalent(twoMinuteNoiseEstimateFactor)
  • Observation atmospheric pressure in AERI electronics(atmosphericPressure)
  • Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
    indicative of front end air flow.(frontEndFanAirTempDiff)
  • Dummy altitude for Zeb(alt)
  • Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
  • Logical flag indicating whether longwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using LWskyNEN and
    LWskyNENlimit.(LWskyNENacceptable)
  • Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
  • Shortwave surface air brightness temperature from radiance average (2295_2300
    cm-1)(surfaceLayerAirTemp2295_2300)
  • Radiance standard deviation during hot blackbody view averaged over (2282_2287
    cm-1)(HBBviewStdDevRadiance2282_2287)
  • Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
  • Imaginary radiance during sky view averaged over (2282_2287 cm-1)(skyViewImaginaryRadiance2282_2287)
  • Radiance standard deviation during ambient blackbody view averaged over
    (2282_2287 cm-1)(ABBviewStdDevRadiance2282_2287)
  • Imaginary radiance during sky view averaged over (2510_2515 cm-1)(skyViewImaginaryRadiance2510_2515)
  • Time offset of tweaks from base_time(time_offset)
  • AERI instrument unit serial number(AERIunitNumber)
  • Radiance standard deviation during hot blackbody view averaged over (2295_2300
    cm-1)(HBBviewStdDevRadiance2295_2300)
  • AERI ingest computer temperature measured at back panel of computer(computerTemp)
  • Spare temperature sensor (location TBD)(spareTemp)
  • Scene mirror motor driver heat sink temperature(motorDriverTemp)
  • Corrective offset for final ambient blackbody average temperature(ABBtempOffset)
  • Radiance standard deviation during hot blackbody view averaged over (2510_2515
    cm-1)(HBBviewStdDevRadiance2510_2515)
  • Version number of Operational Software(systemReleaseNumber)
  • Ambient air temperature near the interferometer(airNearInterferometerTemp)
  • Signal conditioning electronics inside air temperature(SCEtemp)
  • Laser wavenumber used in definition of output wavenumber scale(outputLaserWavenumber)
  • Limit applied to SWskyNEN in determination of SWskyNENacceptable(SWskyNENlimit)
  • Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
  • Duration of scene view(sceneViewDuration)
  • Weight factor for top used in calculating ambient blackbody temperature average(ABBtopTempWeight)
  • Number of views in a sequence(sceneMirPosCount)
  • Field of view half angle used in finite FOV correction(FFOVhalfAngle)
  • Imaginary radiance during sky view averaged over (985_990 cm-1)(skyViewImaginaryRadiance985_990)
  • Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
  • Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
  • lon(lon)
  • Weight factor for bottom used in calculating ambient blackbody temperature
    average(ABBbottomTempWeight)
  • Observation Altitude(Altitude)
  • Weight factor for top used in calculating hot blackbody temperature average(HBBtopTempWeight)
  • Radiance standard deviation during hot blackbody view averaged over (985_990
    cm-1)(HBBviewStdDevRadiance985_990)
  • Difference between actual and ideal motor encoder values for current view
    indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
  • Blackbody cavity geometry factor(BBcavityFactor)
  • Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
  • Radiance standard deviation during ambient blackbody view averaged over (675_680
    cm-1)(ABBviewStdDevRadiance675_680)
  • Size of buffer holding expanded spectrum before interpolation(expandedInterferogramSize)
  • Julian Day including day and fraction of day(JulianDay)
  • The noise equivalent radiance observed in the shortwave channel during a sky
    view at 2500 cm-1(SWskyNEN)
  • Corrective offset for final hot blackbody average temperature(HBBtempOffset)
  • Imaginary radiance during sky view averaged over (700_705 cm-1)(skyViewImaginaryRadiance700_705)
  • Resistive temperature of 2500 Ohm fixed resistor - banana plug mounted(fixed2500ohmResistor)
  • Characteristic value representing overall longwave channel responsivity(LWresponsivity)
  • The noise equivalent radiance observed in the longwave channel during a sky view
    at 1000 cm-1(LWskyNEN)
  • Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
  • Number of complete (forward+backward) interferogram scans in sample average(coadditionsCount)
  • Stirling cooler power supply temperature measured at power supply frame(coolerPowerSupplyTemp)
  • lat(lat)
  • Scene mirror position encoder value(sceneMirPosEncoder)
  • Imaginary radiance during sky view averaged over (2295_2300 cm-1)(skyViewImaginaryRadiance2295_2300)
  • Ambient air temperature at hatch opening(outsideAirTemp)

Back To Table of Contents

DQRID : D020823.27
Start DateStart TimeEnd DateEnd Time
10/16/1999000012/10/19992359
09/07/2001000009/09/20012359
10/28/2001013010/28/20010200
Subject:
NSA/AERI/C1 - External Temperature Sensor Failed
DataStreams:nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaeriengineerC1.a1, nsaaerisummaryC1.a1
Description:
There appear to have been some problem with the external temperature sensor. The outside 
temperature sensor data is not used in the derivation of the spectral IR data and are just 
a diagnostic tool. We have not found what
caused this behaviour.
Measurements:nsaaerich2C1.a1:
  • Ambient air temperature at hatch opening(outsideAirTemp)
nsaaerisummaryC1.a1:
  • Ambient air temperature at hatch opening(outsideAirTemp)
nsaaeriengineerC1.a1:
  • Ambient air temperature at hatch opening(outsideAirTemp)
nsaaerich1C1.a1:
  • Ambient air temperature at hatch opening(outsideAirTemp)

Back To Table of Contents

DQRID : D021113.6
Start DateStart TimeEnd DateEnd Time
04/18/2002013205/16/20021830
Subject:
NSA/AERI/C1 - AERI extended range detector at Barrow
DataStreams:nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaeriengineerC1.a1, nsaaerisummaryC1.a1
Description:
The extended range detector had failed and a borrowed replacement detector was installed. 
The replacement detector had enough air present in the dewar to cause the cryogenic 
cooler to work at full current. The detector was still warmer than optimal and there is more 
noise present in the data than is considered normal. The data must be used with 
discretion. The system was shut off on 020516 due to noise and rising detector temperatures.
Measurements:nsaaerich2C1.a1:
  • Mean of radiance spectra ensemble(mean_rad)
nsaaerisummaryC1.a1:
  • AERI LW Scene Variability Spectral Averages (Ch1)(SkyVariabilityAveragesCh1)
  • AERI SW Scene Variability Spectral Averages (Ch2)(SkyVariabilityAveragesCh2)
  • Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
  • Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
  • Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
  • AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENEstimateNo1ch2)
  • AERI SW Scene Variability Spectral Averages (Ch2)(SkyUniformityCh2)
  • AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENEstimateNo1ch1)
  • AERI LW Scene Variability Spectral Averages (Ch1)(SkyUniformityCh1)
  • Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
  • AERI LW Scene Brightness Temp Spectral Averages (Ch1)(SkyBrightnessTempSpectralAveragesCh1)
  • Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
  • Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
  • AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectraAveragesCh2)
  • AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectraAveragesCh1)
  • AERI SW Scene Brightness Temp Spectral Averages (Ch2)(SkyBrightnessTempSpectralAveragesCh2)
  • AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENEstimateNo2ch1)
  • AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENEstimateNo2ch2)
  • Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
  • Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
  • AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectraAveragesCh2)
  • AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectraAveragesCh1)
  • Characteristic value representing overall longwave channel responsivity(LWresponsivity)
  • Shortwave surface air brightness temperature from radiance average (2295_2300
    cm-1)(surfaceLayerAirTemp2295_2300)
  • Shortwave elevated air brightness temperature from radiance average (2282_2287
    cm-1)(elevatedLayerAirTemp2282_2287)
  • Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
  • Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
  • AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENch1)
  • Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
  • AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENch2)
  • 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)
  • Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
  • AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENEstimateNo1Ch1)
  • AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENEstimateNo1Ch2)
  • AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENCh2)
  • AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENCh1)
  • Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
  • AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
  • AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectralAveragesCh2)
  • AERI SW Scene Variability Spectral Averages (Ch2)(SkyVariabilityCh2)
  • AERI LW Scene Variability Spectral Averages (Ch1)(SkyVariabilityCh1)
  • Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
  • Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
  • Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
  • The noise equivalent radiance observed in the longwave channel during a sky view
    at 1000 cm-1(LWskyNEN)
  • Longwave elevated air brightness temperature from radiance average (700_705
    cm-1)(elevatedLayerAirTemp700_705)
  • Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
  • The noise equivalent radiance observed in the shortwave channel during a sky
    view at 2500 cm-1(SWskyNEN)
  • AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENEstimateNo2Ch1)
  • AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENEstimateNo2Ch2)
  • AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectralAveragesCh2)
  • AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectralAveragesCh1)
  • AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENestimateNo2Ch2)
  • Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
  • AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENestimateNo2Ch1)
nsaaerich1C1.a1:
  • Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
  • Mean of radiance spectra ensemble(mean_rad)
nsaaeriengineerC1.a1:
  • Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
  • Radiance standard deviation during hot blackbody view averaged over (700_705
    cm-1)(HBBviewStdDevRadiance700_705)
  • Radiance standard deviation during ambient blackbody view averaged over (985_990
    cm-1)(ABBviewStdDevRadiance985_990)
  • Stirling cycle cooler current(coolerCurrent)
  • Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
  • Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
  • 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)
  • Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
  • Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
  • Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
  • Radiance standard deviation during ambient blackbody view averaged over
    (2510_2515 cm-1)(ABBviewStdDevRadiance2510_2515)
  • Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
  • Shortwave surface air brightness temperature from radiance average (2295_2300
    cm-1)(surfaceLayerAirTemp2295_2300)
  • Radiance standard deviation during hot blackbody view averaged over (2282_2287
    cm-1)(HBBviewStdDevRadiance2282_2287)
  • Longwave elevated air brightness temperature from radiance average (700_705
    cm-1)(elevatedLayerAirTemp700_705)
  • Imaginary radiance during sky view averaged over (2282_2287 cm-1)(skyViewImaginaryRadiance2282_2287)
  • Radiance standard deviation during ambient blackbody view averaged over
    (2282_2287 cm-1)(ABBviewStdDevRadiance2282_2287)
  • Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
  • Imaginary radiance during sky view averaged over (2510_2515 cm-1)(skyViewImaginaryRadiance2510_2515)
  • Radiance standard deviation during ambient blackbody view averaged over (700_705
    cm-1)(ABBviewStdDevRadiance700_705)
  • Detector temperature sensed via diode near detector(detectorTemp)
  • Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
  • Radiance standard deviation during hot blackbody view averaged over (2295_2300
    cm-1)(HBBviewStdDevRadiance2295_2300)
  • 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)
  • Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
  • Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
  • Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
  • Imaginary radiance during sky view averaged over (675_680 cm-1)(skyViewImaginaryRadiance675_680)
  • Radiance standard deviation during hot blackbody view averaged over (675_680
    cm-1)(HBBviewStdDevRadiance675_680)
  • Imaginary radiance during sky view averaged over (985_990 cm-1)(skyViewImaginaryRadiance985_990)
  • Shortwave elevated air brightness temperature from radiance average (2282_2287
    cm-1)(elevatedLayerAirTemp2282_2287)
  • Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
  • Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
  • Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
  • Radiance standard deviation during ambient blackbody view averaged over
    (2295_2300 cm-1)(ABBviewStdDevRadiance2295_2300)
  • Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
  • Radiance standard deviation during hot blackbody view averaged over (985_990
    cm-1)(HBBviewStdDevRadiance985_990)
  • Radiance standard deviation during ambient blackbody view averaged over (675_680
    cm-1)(ABBviewStdDevRadiance675_680)
  • The noise equivalent radiance observed in the shortwave channel during a sky
    view at 2500 cm-1(SWskyNEN)
  • Imaginary radiance during sky view averaged over (700_705 cm-1)(skyViewImaginaryRadiance700_705)
  • Characteristic value representing overall longwave channel responsivity(LWresponsivity)
  • The noise equivalent radiance observed in the longwave channel during a sky view
    at 1000 cm-1(LWskyNEN)
  • Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
  • Imaginary radiance during sky view averaged over (2295_2300 cm-1)(skyViewImaginaryRadiance2295_2300)

Back To Table of Contents

DQRID : D030203.1
Start DateStart TimeEnd DateEnd Time
01/20/2003183501/25/20030041
Subject:
NSA/AERI/C1 - Failure of AERI cryogenic cooler
DataStreams:nsaaeriC1.00, nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaeriengineerC1.a1, nsaaerisummaryC1.a1
Description:
Failure of the cryogenic cooler for the AERI detector resulted in the instrument being 
shut down during the interval January 20, 2003 @1835GMT until January 25, 2003 @0041GMT, 
when a new cryogenic cooler was installed. All data are missing for this period. Data after 
the new cooler was installed are within normal acceptable limits.
Measurements:nsaaeriC1.00:
  • null(Raw data stream - documentation not supported)
nsaaerich2C1.a1:
  • Logical flag indicating that a data record is missing (true/false(missingDataFlag)
  • Time at center of AERI sky observation period(Time)
  • Julian Day including day and fraction of day(JulianDay)
  • Hot blackbody temperature used in calibration(calibrationHBBtemp)
  • AERI instrument unit serial number(AERIunitNumber)
  • base time(base_time)
  • Ambient air temperature at hatch opening(outsideAirTemp)
  • Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
  • Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
  • Wave number(wnum)
  • Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
  • Character string containing instrument name(instrumentUnitNumber)
  • Observation latitude(Latitude)
  • wavenumbers for standard deviation of radiance spectra(wnum2)
  • Mean of radiance spectra ensemble(mean_rad)
  • Cold blackbody temperature used in calibration(calibrationCBBtemp)
  • lat(lat)
  • Time (HHMMSS)(timeHHMMSS)
  • Dummy altitude for Zeb(alt)
  • Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
  • lon(lon)
  • Observation Altitude(Altitude)
  • Time offset of tweaks from base_time(time_offset)
  • Observation atmospheric pressure in AERI electronics(atmosphericPressure)
  • Scene mirror view angle in non-negative degrees, measured clockwise looking into
    interferometer window.(sceneMirrorAngle)
  • Observation date(dateYYMMDD)
  • Version number of Operational Software(systemReleaseNumber)
  • Duration of scene view(sceneViewDuration)
  • 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)
  • BB Support Structure Temperature(BBsupportStructureTemp)
  • AERI instrument data channel number(channelNumber)
  • Ambient temperature used in calibration(calibrationAmbientTemp)
  • Observation longitude(Longitude)
nsaaerisummaryC1.a1:
  • Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
  • AERI LW Scene Variability Spectral Averages (Ch1)(SkyVariabilityAveragesCh1)
  • AERI SW Scene Variability Spectral Averages (Ch2)(SkyVariabilityAveragesCh2)
  • Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
  • Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
  • Dummy altitude for Zeb(alt)
  • 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)
  • AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENEstimateNo1ch2)
  • AERI SW Scene Variability Spectral Averages (Ch2)(SkyUniformityCh2)
  • AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENEstimateNo1ch1)
  • AERI LW Scene Variability Spectral Averages (Ch1)(SkyUniformityCh1)
  • Logical flag indicating whether shortwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using SWskyNEN and
    SWskyNENlimit.(SWskyNENacceptable)
  • AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectraAveragesCh2)
  • AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectraAveragesCh1)
  • Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
  • Wave number in reciprocal centimeters(wnumsum2)
  • Wave number in reciprocal centimeters(wnumsum1)
  • Wave number in reciprocal centimeters(wnumsum4)
  • Wave number in reciprocal centimeters(wnumsum3)
  • Wave number in reciprocal centimeters(wnumsum6)
  • Wave number in reciprocal centimeters(wnumsum5)
  • Wave number in reciprocal centimeters(wnumsum8)
  • Wave number in reciprocal centimeters(wnumsum7)
  • Wave number in reciprocal centimeters(wnumsum9)
  • Observation Altitude(Altitude)
  • Shortwave surface air brightness temperature from radiance average (2295_2300
    cm-1)(surfaceLayerAirTemp2295_2300)
  • Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
  • Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
  • Julian Day including day and fraction of day(JulianDay)
  • 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)
  • Version number of Operational Software(systemReleaseNumber)
  • Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
  • The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
    centered on the sky view(HBBtempDrift)
  • AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENCh2)
  • AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENCh1)
  • Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
  • Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
  • AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
  • AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectralAveragesCh2)
  • AERI SW Scene Variability Spectral Averages (Ch2)(SkyVariabilityCh2)
  • AERI LW Scene Variability Spectral Averages (Ch1)(SkyVariabilityCh1)
  • xxx(dataAvailable)
  • Time at center of AERI sky observation period(Time)
  • Scene mirror view angle in non-negative degrees, measured clockwise looking into
    interferometer window.(sceneMirrorAngle)
  • Difference between actual and ideal motor encoder values for current view
    indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
  • The noise equivalent radiance observed in the longwave channel during a sky view
    at 1000 cm-1(LWskyNEN)
  • base time(base_time)
  • Time (HHMMSS)(timeHHMMSS)
  • Duration of scene view(sceneViewDuration)
  • Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
  • Observation date(dateYYMMDD)
  • Time offset of tweaks from base_time(time_offset)
  • 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)
  • Cold blackbody temperature used in calibration(calibrationCBBtemp)
  • Ambient temperature used in calibration(calibrationAmbientTemp)
  • AERI instrument data channel number(channelNumber)
  • Observation longitude(Longitude)
  • 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)
  • Logical flag indicating whether longwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using LWskyNEN and
    LWskyNENlimit.(LWskyNENacceptable)
  • AERI instrument unit serial number(AERIunitNumber)
  • Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
  • Observation atmospheric pressure in AERI electronics(atmosphericPressure)
  • Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
  • AERI LW Scene Brightness Temp Spectral Averages (Ch1)(SkyBrightnessTempSpectralAveragesCh1)
  • Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
  • Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
  • AERI SW Scene Brightness Temp Spectral Averages (Ch2)(SkyBrightnessTempSpectralAveragesCh2)
  • AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENEstimateNo2ch1)
  • AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENEstimateNo2ch2)
  • Observation latitude(Latitude)
  • Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
  • Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
  • AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectraAveragesCh2)
  • AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectraAveragesCh1)
  • Characteristic value representing overall longwave channel responsivity(LWresponsivity)
  • Shortwave elevated air brightness temperature from radiance average (2282_2287
    cm-1)(elevatedLayerAirTemp2282_2287)
  • Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
  • AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENch1)
  • Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
  • AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENch2)
  • Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
    indicative of front end air flow.(frontEndFanAirTempDiff)
  • Wave number in reciprocal centimeters(wnumsum13)
  • Wave number in reciprocal centimeters(wnumsum12)
  • Wave number in reciprocal centimeters(wnumsum11)
  • Hot blackbody temperature used in calibration(calibrationHBBtemp)
  • Wave number in reciprocal centimeters(wnumsum10)
  • Wave number in reciprocal centimeters(wnumsum14)
  • AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENEstimateNo1Ch1)
  • AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENEstimateNo1Ch2)
  • Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
  • Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
  • Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
  • Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
  • lon(lon)
  • Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
  • Longwave elevated air brightness temperature from radiance average (700_705
    cm-1)(elevatedLayerAirTemp700_705)
  • Logical flag indicating whether HBB temperature is stable (true) or not stable
    (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
  • 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)
  • AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENEstimateNo2Ch1)
  • AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENEstimateNo2Ch2)
  • lat(lat)
  • AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectralAveragesCh2)
  • AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectralAveragesCh1)
  • AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENestimateNo2Ch2)
  • Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
  • AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENestimateNo2Ch1)
  • Character string containing instrument name(instrumentUnitNumber)
nsaaerich1C1.a1:
  • Julian Day including day and fraction of day(JulianDay)
  • 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 at center of AERI sky observation period(Time)
  • Time (HHMMSS)(timeHHMMSS)
  • Version number of Operational Software(systemReleaseNumber)
  • Time offset of tweaks from base_time(time_offset)
  • Duration of scene view(sceneViewDuration)
  • BB Support Structure Temperature(BBsupportStructureTemp)
  • Observation longitude(Longitude)
  • wavenumbers for standard deviation of radiance spectra(wnum2)
  • Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
  • Cold blackbody temperature used in calibration(calibrationCBBtemp)
  • Observation atmospheric pressure in AERI electronics(atmosphericPressure)
  • Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
  • Ambient air temperature at hatch opening(outsideAirTemp)
  • Mean of radiance spectra ensemble(mean_rad)
  • Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
  • Observation Altitude(Altitude)
  • Observation date(dateYYMMDD)
  • Logical flag indicating that a data record is missing (true/false(missingDataFlag)
  • base time(base_time)
  • Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
  • Dummy altitude for Zeb(alt)
  • Scene mirror view angle in non-negative degrees, measured clockwise looking into
    interferometer window.(sceneMirrorAngle)
  • AERI instrument unit serial number(AERIunitNumber)
  • lat(lat)
  • lon(lon)
  • Observation latitude(Latitude)
  • AERI instrument data channel number(channelNumber)
  • Character string containing instrument name(instrumentUnitNumber)
  • Wave number(wnum)
  • Ambient temperature used in calibration(calibrationAmbientTemp)
  • Hot blackbody temperature used in calibration(calibrationHBBtemp)
nsaaeriengineerC1.a1:
  • Motor step value given to motor controller to achieve proper mirror positioning(sceneMirrorMotorStep)
  • Time (HHMMSS)(timeHHMMSS)
  • Scene mirror temperature as measured at the center of the back of the mirror(sceneMirrorTemp)
  • Ambient air temperature near blackbodies(airNearBBsTemp)
  • Scene mirror view angle in non-negative degrees, measured clockwise looking into
    interferometer window.(sceneMirrorAngle)
  • base time(base_time)
  • Stirling cycle cooler current(coolerCurrent)
  • Relative Humidity measured in the Interferometer Enclosure(interferometerEnclosureRelativeHumidity)
  • Blackbody controller Unit 1 power supply temperature(BBcontroller1temp)
  • 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)
  • Electronics rack ambient temperature measured at inside top of rack(rackAmbientTemp)
  • Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
  • Stirling cycle cooler expander temperature(coolerExpanderTemp)
  • 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)
  • Number of terms used in finite field of view correction(numberOfTerms)
  • Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
  • Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
  • AERI instrument data channel number(channelNumber)
  • Logical flag indicating whether HBB temperature is stable (true) or not stable
    (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
  • Resistive temperature of 12 Kohm fixed resistor located in SCE-P3 shell(fixed12KohmResistor)
  • The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
    centered on the sky view(HBBtempDrift)
  • Observation date(dateYYMMDD)
  • Ambient blackbody temperature - rim top(ABBtopTemp)
  • Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
  • Longwave elevated air brightness temperature from radiance average (700_705
    cm-1)(elevatedLayerAirTemp700_705)
  • Interferometer front end fan airflow heated temperature: used with unheated
    temperature as measure of airflow.(frontEndFanAirHeatedTemp)
  • Original laser wavenumber assumed for this instrument(originalLaserWavenumber)
  • Interferometer window temperature measured on the outside of the aluminum window
    flange(interferometerWindowTemp)
  • Relative humidity measured in the optics compartment atop the interferometer.(opticsCompartmentRelativeHumidity)
  • Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
  • 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)
  • Character string containing instrument name(instrumentUnitNumber)
  • Radiance standard deviation during ambient blackbody view averaged over (700_705
    cm-1)(ABBviewStdDevRadiance700_705)
  • Detector temperature sensed via diode near detector(detectorTemp)
  • Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
  • Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
  • Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
  • Cold blackbody temperature used in calibration(calibrationCBBtemp)
  • BB Support Structure Temperature(BBsupportStructureTemp)
  • Weight factor for apex used in calculating ambient blackbody temperature average(ABBapexTempWeight)
  • xxx(dataAvailable)
  • Observation latitude(Latitude)
  • Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
  • Size of buffer holding initial spectrum(originalInterferogramSize)
  • Ambient temperature used in calibration(calibrationAmbientTemp)
  • Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
  • Hot blackbody temperature - rim top(HBBtopTemp)
  • Hot blackbody temperature used in calibration(calibrationHBBtemp)
  • Imaginary radiance during sky view averaged over (675_680 cm-1)(skyViewImaginaryRadiance675_680)
  • Radiance standard deviation during hot blackbody view averaged over (675_680
    cm-1)(HBBviewStdDevRadiance675_680)
  • Shortwave elevated air brightness temperature from radiance average (2282_2287
    cm-1)(elevatedLayerAirTemp2282_2287)
  • Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
  • Radiance standard deviation during ambient blackbody view averaged over
    (2295_2300 cm-1)(ABBviewStdDevRadiance2295_2300)
  • Hot blackbody temperature - apex(HBBapexTemp)
  • Logical flag indicating that a data record is missing (true/false(missingDataFlag)
  • Limit applied to HBBtempDrift in determination of HBBstable flag(HBBtempDriftLimit)
  • Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
  • Blackbody controller Unit 2 power supply temperature(BBcontroller2temp)
  • Time at center of AERI sky observation period(Time)
  • Instrument scene mirror position identifier(sceneMirrorPosition)
  • Resistive temperature of 97 Kohm fixed resistor located in SCE-P4 shell(fixed97KohmResistor)
  • Stirling cooler compressor temperature measured at compressor heatsink(coolerCompressorTemp)
  • Observation longitude(Longitude)
  • Logical flag indicating whether shortwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using SWskyNEN and
    SWskyNENlimit.(SWskyNENacceptable)
  • Ambient blackbody temperature(ABBbottomTemp)
  • 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)
  • Weight factor for bottom used in calculating hot blackbody temperature average(HBBbottomTempWeight)
  • Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
  • Radiance standard deviation during hot blackbody view averaged over (700_705
    cm-1)(HBBviewStdDevRadiance700_705)
  • AERI interferometer temperature at second port(interferometerSecondPortTemp)
  • Ambient blackbody temperature - apex(ABBapexTemp)
  • Scene mirror motor case temperature(mirrorMotorTemp)
  • Limit applied to LWskyNEN in determination of LWskyNENacceptable(LWskyNENlimit)
  • Radiance standard deviation during ambient blackbody view averaged over (985_990
    cm-1)(ABBviewStdDevRadiance985_990)
  • Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
  • Hot blackbody temperature - rim bottom(HBBbottomTemp)
  • Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
  • Weight factor for apex used in calculating hot blackbody temperature average(HBBapexTempWeight)
  • Factor used to convert single-scan noise to two-minute equivalent(twoMinuteNoiseEstimateFactor)
  • Observation atmospheric pressure in AERI electronics(atmosphericPressure)
  • Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
    indicative of front end air flow.(frontEndFanAirTempDiff)
  • Dummy altitude for Zeb(alt)
  • Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
  • Logical flag indicating whether longwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using LWskyNEN and
    LWskyNENlimit.(LWskyNENacceptable)
  • Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
  • Shortwave surface air brightness temperature from radiance average (2295_2300
    cm-1)(surfaceLayerAirTemp2295_2300)
  • Radiance standard deviation during hot blackbody view averaged over (2282_2287
    cm-1)(HBBviewStdDevRadiance2282_2287)
  • Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
  • Imaginary radiance during sky view averaged over (2282_2287 cm-1)(skyViewImaginaryRadiance2282_2287)
  • Radiance standard deviation during ambient blackbody view averaged over
    (2282_2287 cm-1)(ABBviewStdDevRadiance2282_2287)
  • Imaginary radiance during sky view averaged over (2510_2515 cm-1)(skyViewImaginaryRadiance2510_2515)
  • Time offset of tweaks from base_time(time_offset)
  • AERI instrument unit serial number(AERIunitNumber)
  • Radiance standard deviation during hot blackbody view averaged over (2295_2300
    cm-1)(HBBviewStdDevRadiance2295_2300)
  • AERI ingest computer temperature measured at back panel of computer(computerTemp)
  • Spare temperature sensor (location TBD)(spareTemp)
  • Scene mirror motor driver heat sink temperature(motorDriverTemp)
  • Corrective offset for final ambient blackbody average temperature(ABBtempOffset)
  • Radiance standard deviation during hot blackbody view averaged over (2510_2515
    cm-1)(HBBviewStdDevRadiance2510_2515)
  • Version number of Operational Software(systemReleaseNumber)
  • Ambient air temperature near the interferometer(airNearInterferometerTemp)
  • Signal conditioning electronics inside air temperature(SCEtemp)
  • Laser wavenumber used in definition of output wavenumber scale(outputLaserWavenumber)
  • Limit applied to SWskyNEN in determination of SWskyNENacceptable(SWskyNENlimit)
  • Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
  • Duration of scene view(sceneViewDuration)
  • Weight factor for top used in calculating ambient blackbody temperature average(ABBtopTempWeight)
  • Number of views in a sequence(sceneMirPosCount)
  • Field of view half angle used in finite FOV correction(FFOVhalfAngle)
  • Imaginary radiance during sky view averaged over (985_990 cm-1)(skyViewImaginaryRadiance985_990)
  • Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
  • Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
  • lon(lon)
  • Weight factor for bottom used in calculating ambient blackbody temperature
    average(ABBbottomTempWeight)
  • Observation Altitude(Altitude)
  • Weight factor for top used in calculating hot blackbody temperature average(HBBtopTempWeight)
  • Radiance standard deviation during hot blackbody view averaged over (985_990
    cm-1)(HBBviewStdDevRadiance985_990)
  • Difference between actual and ideal motor encoder values for current view
    indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
  • Blackbody cavity geometry factor(BBcavityFactor)
  • Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
  • Radiance standard deviation during ambient blackbody view averaged over (675_680
    cm-1)(ABBviewStdDevRadiance675_680)
  • Size of buffer holding expanded spectrum before interpolation(expandedInterferogramSize)
  • Julian Day including day and fraction of day(JulianDay)
  • The noise equivalent radiance observed in the shortwave channel during a sky
    view at 2500 cm-1(SWskyNEN)
  • Corrective offset for final hot blackbody average temperature(HBBtempOffset)
  • Imaginary radiance during sky view averaged over (700_705 cm-1)(skyViewImaginaryRadiance700_705)
  • Resistive temperature of 2500 Ohm fixed resistor - banana plug mounted(fixed2500ohmResistor)
  • Characteristic value representing overall longwave channel responsivity(LWresponsivity)
  • The noise equivalent radiance observed in the longwave channel during a sky view
    at 1000 cm-1(LWskyNEN)
  • Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
  • Number of complete (forward+backward) interferogram scans in sample average(coadditionsCount)
  • Stirling cooler power supply temperature measured at power supply frame(coolerPowerSupplyTemp)
  • lat(lat)
  • Scene mirror position encoder value(sceneMirPosEncoder)
  • Imaginary radiance during sky view averaged over (2295_2300 cm-1)(skyViewImaginaryRadiance2295_2300)
  • Ambient air temperature at hatch opening(outsideAirTemp)

Back To Table of Contents

DQRID : D030203.2
Start DateStart TimeEnd DateEnd Time
01/17/2003174901/20/20031835
Subject:
NSA/AERI/C1 - Failure of AERI cryogenic cooler
DataStreams:nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaeriengineerC1.a1, nsaaerisummaryC1.a1
Description:
In January 2003, the cryogenic cooler current for the Barrow, AERI detector was steadily 
increasing. This increase is a sign of cooler failure. On January 16,2003, the cooler 
began to make noise. The cooler was shut-off on January 17,2003 and any condensed gases were 
allowed to vent. Condensed gases in the detector dewar cause a cooler to work harder and 
increase the current. The cooler was then resealed and turned on. However, the cooler did 
not recover and the current was at a maximum. The cooler was unable to completely cool 
the detector and the detector never achieved a temperature below 72K. Higher detector 
temperature increases instrument noise. The instrument was shut off on January 20, 2003 at 
1835GMT to prevent a catatrophic failure due to complete cooler failure and 
repressurization of the detector dewar, which would result in a subsequent implosion of the dewar.
Measurements:nsaaerich2C1.a1:
  • Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
  • Mean of radiance spectra ensemble(mean_rad)
nsaaerisummaryC1.a1:
  • Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
  • AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENCh2)
  • AERI LW Scene Variability Spectral Averages (Ch1)(SkyVariabilityAveragesCh1)
  • AERI SW Scene Variability Spectral Averages (Ch2)(SkyVariabilityAveragesCh2)
  • AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENCh1)
  • Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
  • Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
  • Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
  • Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
  • AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
  • AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectralAveragesCh2)
  • AERI SW Scene Variability Spectral Averages (Ch2)(SkyVariabilityCh2)
  • AERI LW Scene Variability Spectral Averages (Ch1)(SkyVariabilityCh1)
  • Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
  • Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
  • AERI SW Scene Variability Spectral Averages (Ch2)(SkyUniformityCh2)
  • AERI LW Scene Variability Spectral Averages (Ch1)(SkyUniformityCh1)
  • Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
  • Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
  • AERI LW Scene Brightness Temp Spectral Averages (Ch1)(SkyBrightnessTempSpectralAveragesCh1)
  • Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
  • Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
  • The noise equivalent radiance observed in the longwave channel during a sky view
    at 1000 cm-1(LWskyNEN)
  • AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectraAveragesCh2)
  • AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectraAveragesCh1)
  • AERI SW Scene Brightness Temp Spectral Averages (Ch2)(SkyBrightnessTempSpectralAveragesCh2)
  • Longwave elevated air brightness temperature from radiance average (700_705
    cm-1)(elevatedLayerAirTemp700_705)
  • Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
  • Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
  • Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
  • AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectraAveragesCh2)
  • The noise equivalent radiance observed in the shortwave channel during a sky
    view at 2500 cm-1(SWskyNEN)
  • AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectraAveragesCh1)
  • Characteristic value representing overall longwave channel responsivity(LWresponsivity)
  • Shortwave surface air brightness temperature from radiance average (2295_2300
    cm-1)(surfaceLayerAirTemp2295_2300)
  • Shortwave elevated air brightness temperature from radiance average (2282_2287
    cm-1)(elevatedLayerAirTemp2282_2287)
  • Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
  • Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
  • AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENch1)
  • AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectralAveragesCh2)
  • AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENch2)
  • Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
  • AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectralAveragesCh1)
  • Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
nsaaerich1C1.a1:
  • Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
  • Mean of radiance spectra ensemble(mean_rad)
nsaaeriengineerC1.a1:
  • Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
  • Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
  • Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
  • Imaginary radiance during sky view averaged over (675_680 cm-1)(skyViewImaginaryRadiance675_680)
  • Imaginary radiance during sky view averaged over (985_990 cm-1)(skyViewImaginaryRadiance985_990)
  • Radiance standard deviation during ambient blackbody view averaged over (985_990
    cm-1)(ABBviewStdDevRadiance985_990)
  • Shortwave elevated air brightness temperature from radiance average (2282_2287
    cm-1)(elevatedLayerAirTemp2282_2287)
  • Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
  • Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
  • Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
  • Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
  • Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
  • Radiance standard deviation during ambient blackbody view averaged over
    (2295_2300 cm-1)(ABBviewStdDevRadiance2295_2300)
  • Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
  • Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
  • 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)
  • Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
  • Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
  • Logical flag indicating whether longwave channel noise equivalent radiance is
    acceptable in sky view (true/false). Determined using LWskyNEN and
    LWskyNENlimit.(LWskyNENacceptable)
  • Shortwave surface air brightness temperature from radiance average (2295_2300
    cm-1)(surfaceLayerAirTemp2295_2300)
  • Longwave elevated air brightness temperature from radiance average (700_705
    cm-1)(elevatedLayerAirTemp700_705)
  • Radiance standard deviation during ambient blackbody view averaged over (675_680
    cm-1)(ABBviewStdDevRadiance675_680)
  • Imaginary radiance during sky view averaged over (2282_2287 cm-1)(skyViewImaginaryRadiance2282_2287)
  • Radiance standard deviation during ambient blackbody view averaged over
    (2282_2287 cm-1)(ABBviewStdDevRadiance2282_2287)
  • Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
  • Imaginary radiance during sky view averaged over (2510_2515 cm-1)(skyViewImaginaryRadiance2510_2515)
  • 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 (700_705
    cm-1)(ABBviewStdDevRadiance700_705)
  • Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
  • Imaginary radiance during sky view averaged over (700_705 cm-1)(skyViewImaginaryRadiance700_705)
  • Characteristic value representing overall longwave channel responsivity(LWresponsivity)
  • The noise equivalent radiance observed in the longwave channel during a sky view
    at 1000 cm-1(LWskyNEN)
  • Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
  • Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
  • Imaginary radiance during sky view averaged over (2295_2300 cm-1)(skyViewImaginaryRadiance2295_2300)
  • Characteristic value representing overall shortwave channel responsivity(SWresponsivity)

Back To Table of Contents


END OF DATA