Data Quality Reports for Session: 114438 User: jzb Completed: 09/26/2008

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D050509.8SGP/MMCR/C1 - Missing or corrupt spectral data filessgpmmcrspecmomC1.a0
D051205.1SGP/MMCR/C1 - No Spectra DatasgpmmcrspecmomC1.a0
D061229.1SGP/MMCR/C1 - TWTA FaultingsgpmmcrmomC1.00, sgpmmcrmomC1.b1, sgpmmcrspecmomC1.a0


DQRID : D050509.8
Start DateStart TimeEnd DateEnd Time
10/22/2003000011/03/20042359
Subject:
SGP/MMCR/C1 - Missing or corrupt spectral data files
DataStreams:sgpmmcrspecmomC1.a0
Description:
Some or all of the SGP.C1 MMCR spectral data archived during this time period were 
corrupted due to problems with the media used to transfer the data.  Known corrupt files have 
been removed from the ARM Archive but users should be aware that additional corrupt data 
files may still be accessible.

Note: If you identify corrupt data files, please contact the ARM Archive at 
armarchive@ornl.gov or 865-241-4851.
Measurements:sgpmmcrspecmomC1.a0:
  • DC Filtering ON-OFF Status(DCFilterONOFF)
  • Elevation(Elevation)
  • Receiver Mode(ReceiverMode)
  • Receiver Gain(RxGain)
  • Number of Receiver(NumReceivers)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • Current Receiver Number(ReceiverNumber)
  • MMCR Spectral Width(SpectralWidth)
  • Windowing ON-OFF Status(WindowingONOFF)
  • Delay to First Range Gate(StartGateDelay)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Dummy altitude for Zeb(alt)
  • Circular Depolarization Ratio(CircularDepolarizationRatio)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Number of Points in FFT(NumFFT)
  • Power (uncalibrated)(Power)
  • Minimum detectable reflectivity(MinimumDetectableReflectivity)
  • Operating Set for this Record(ModeNum)
  • Spectral Data(Spectra)
  • base time(base_time)
  • MMCR Reflectivity(Reflectivity)
  • Time offset of tweaks from base_time(time_offset)
  • Receiver Sky Noise(SkyNoiseLevel)
  • Range Corrected Calibrated Power(RangeCorrectedPower)
  • lat(lat)
  • Inter-Pulse Period(InterPulsePeriod)
  • Height of Center of Each Range Bin(Heights)
  • Receiver 290K Level(Rx290KLevel)
  • Data Quality Status(DataQualityStatus)
  • Pulse Width(PulseWidth)
  • Number of Code Bits(NumCodeBits)
  • Gate Spacing(GateSpacing)
  • Radar Constant(RadarConstant)
  • Signal to Noise Ratio(SignalToNoiseRatio)
  • Mean Noise Level(NoiseLevel)
  • lon(lon)
  • Max. height of clutter removal(ClutterHeight)
  • First Order Estimate of Spectral Count Calibration(CalibrationConstant)
  • Azimuth(Azimuth)
  • Receiver Cal Check Time Stamp(CalCheckTime)
  • Receiver Cal Check Level(CalCheckLevel)
  • radar mode char identifier(ModeDescription)
  • Number of Gate Heights(NumHeights)
  • Number of Spectral Averages(NumSpectralAverages)
  • Average Noise Level (S/N<0)(AvgNoiseLevel)
  • Receiver Cal Time Stamp(RxCalTimeStamp)

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DQRID : D051205.1
Start DateStart TimeEnd DateEnd Time
11/10/2005220012/05/20050445
Subject:
SGP/MMCR/C1 - No Spectra Data
DataStreams:sgpmmcrspecmomC1.a0
Description:
The MMCR inexplicably switched (or was switched) to an inproper configuration 
(SGP_new.cfg).  I noticed this when I saw that moments data rather than spectra data were written to 
a disk that I was checking this weekend.  The MMCR is now running the proper 
configuration SGP.cfg.  

I checked the SGP maintenance logs and there are no entries for 11/10/05.
Measurements:sgpmmcrspecmomC1.a0:
  • DC Filtering ON-OFF Status(DCFilterONOFF)
  • Elevation(Elevation)
  • Receiver Mode(ReceiverMode)
  • Receiver Gain(RxGain)
  • Number of Receiver(NumReceivers)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • Current Receiver Number(ReceiverNumber)
  • MMCR Spectral Width(SpectralWidth)
  • Windowing ON-OFF Status(WindowingONOFF)
  • Delay to First Range Gate(StartGateDelay)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Dummy altitude for Zeb(alt)
  • Circular Depolarization Ratio(CircularDepolarizationRatio)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Number of Points in FFT(NumFFT)
  • Power (uncalibrated)(Power)
  • Minimum detectable reflectivity(MinimumDetectableReflectivity)
  • Operating Set for this Record(ModeNum)
  • Spectral Data(Spectra)
  • base time(base_time)
  • MMCR Reflectivity(Reflectivity)
  • Time offset of tweaks from base_time(time_offset)
  • Receiver Sky Noise(SkyNoiseLevel)
  • Range Corrected Calibrated Power(RangeCorrectedPower)
  • lat(lat)
  • Inter-Pulse Period(InterPulsePeriod)
  • Height of Center of Each Range Bin(Heights)
  • Receiver 290K Level(Rx290KLevel)
  • Data Quality Status(DataQualityStatus)
  • Pulse Width(PulseWidth)
  • Number of Code Bits(NumCodeBits)
  • Gate Spacing(GateSpacing)
  • Radar Constant(RadarConstant)
  • Signal to Noise Ratio(SignalToNoiseRatio)
  • Mean Noise Level(NoiseLevel)
  • lon(lon)
  • Max. height of clutter removal(ClutterHeight)
  • First Order Estimate of Spectral Count Calibration(CalibrationConstant)
  • Azimuth(Azimuth)
  • Receiver Cal Check Time Stamp(CalCheckTime)
  • Receiver Cal Check Level(CalCheckLevel)
  • radar mode char identifier(ModeDescription)
  • Number of Gate Heights(NumHeights)
  • Number of Spectral Averages(NumSpectralAverages)
  • Average Noise Level (S/N<0)(AvgNoiseLevel)
  • Receiver Cal Time Stamp(RxCalTimeStamp)

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DQRID : D061229.1
Start DateStart TimeEnd DateEnd Time
11/23/2006190011/23/20062359
12/03/2006090012/03/20062359
12/04/2006190012/04/20062359
12/06/2006020012/06/20062359
12/07/2006130012/07/20061600
12/11/2006070012/11/20062359
12/17/2006020012/17/20062359
12/18/2006040012/18/20062359
12/24/2006060012/24/20062359
12/26/2006090012/26/20061300
12/27/2006140012/27/20061500
01/07/2007170001/07/20071900
01/10/2007100001/10/20071400
01/12/2007110001/12/20071300
01/13/2007080001/13/20071530
01/13/2007190001/13/20072359
01/14/2007033001/14/20071400
01/15/2007030001/15/20071500
Subject:
SGP/MMCR/C1 - TWTA Faulting
DataStreams:sgpmmcrmomC1.00, sgpmmcrmomC1.b1, sgpmmcrspecmomC1.a0
Description:
The MMCR transmitter (TWTA) has been having a low helix current fault.  This results in 
the transmitter shutting down.  However, the radar continues to collect data.  The MMCR 
restarts the TWTA at 0000 each day, hence the 2359 end times for many of these intervals.
Measurements:sgpmmcrmomC1.b1:
  • Peak tranmitted power, averaged over the course of the hour(PeakTransmittedPowerAvg)
  • Receiver Gain(RxGain)
  • Range Corrected Calibrated Power(RangeCorrectedPower)
  • Receiver 290K Level(Rx290KLevel)
  • Number of Gate Heights(NumHeights)
  • Mean Noise Level(NoiseLevel)
  • radar mode char identifier(ModeDescription)
  • Receiver Cal Time Stamp(RxCalTimeStamp)
  • base time(base_time)
  • MMCR Spectral Width(SpectralWidth)
  • Pulse Width(PulseWidth)
  • Number of Code Bits(NumCodeBits)
  • Power (uncalibrated)(Power)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • Circular Depolarization Ratio(CircularDepolarizationRatio)
  • Receiver Mode(ReceiverMode)
  • Signal to Noise Ratio(SignalToNoiseRatio)
  • Time offset of tweaks from base_time(time_offset)
  • Array of heights for each power(heights)
  • TWT Status Code, details forthcoming from MMCR vendor(TWTStatusCode)
  • Current Receiver Number(ReceiverNumber)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Time associated with hourly averaged values(TimeAvg)
  • Dummy altitude for Zeb(alt)
  • Receiver Cal Check Level(CalCheckLevel)
  • Average Noise Level (S/N<0)(AvgNoiseLevel)
  • Delay to First Range Gate(StartGateDelay)
  • Number of Points in FFT(NumFFT)
  • Receiver Cal Check Time Stamp(CalCheckTime)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Inter-Pulse Period(InterPulsePeriod)
  • DC Filtering ON-OFF Status(DCFilterONOFF)
  • Windowing ON-OFF Status(WindowingONOFF)
  • Number of Receiver(NumReceivers)
  • Receiver Sky Noise(SkyNoiseLevel)
  • lat(lat)
  • Minimum detectable reflectivity(MinimumDetectableReflectivity)
  • Gate Spacing(GateSpacing)
  • Operating Set for this Record(ModeNum)
  • MMCR Reflectivity(Reflectivity)
  • Data Quality Status(DataQualityStatus)
  • Number of Spectral Averages(NumSpectralAverages)
  • Max. height of clutter removal(ClutterHeight)
  • time(time)
  • lon(lon)
  • Radar Constant(RadarConstant)
sgpmmcrmomC1.00:
  • Raw data stream - documentation not supported(raw)
sgpmmcrspecmomC1.a0:
  • Elevation(Elevation)
  • Receiver Gain(RxGain)
  • Delay to First Range Gate(StartGateDelay)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Power (uncalibrated)(Power)
  • Operating Set for this Record(ModeNum)
  • Time offset of tweaks from base_time(time_offset)
  • Receiver Sky Noise(SkyNoiseLevel)
  • Range Corrected Calibrated Power(RangeCorrectedPower)
  • lat(lat)
  • Inter-Pulse Period(InterPulsePeriod)
  • Height of Center of Each Range Bin(Heights)
  • Data Quality Status(DataQualityStatus)
  • lon(lon)
  • Max. height of clutter removal(ClutterHeight)
  • Azimuth(Azimuth)
  • Receiver Cal Check Level(CalCheckLevel)
  • radar mode char identifier(ModeDescription)
  • Number of Gate Heights(NumHeights)
  • Receiver Cal Time Stamp(RxCalTimeStamp)
  • DC Filtering ON-OFF Status(DCFilterONOFF)
  • Receiver Mode(ReceiverMode)
  • Number of Receiver(NumReceivers)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • Current Receiver Number(ReceiverNumber)
  • MMCR Spectral Width(SpectralWidth)
  • Windowing ON-OFF Status(WindowingONOFF)
  • Dummy altitude for Zeb(alt)
  • Circular Depolarization Ratio(CircularDepolarizationRatio)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Number of Points in FFT(NumFFT)
  • Minimum detectable reflectivity(MinimumDetectableReflectivity)
  • Spectral Data(Spectra)
  • MMCR Reflectivity(Reflectivity)
  • base time(base_time)
  • Receiver 290K Level(Rx290KLevel)
  • Number of Code Bits(NumCodeBits)
  • Pulse Width(PulseWidth)
  • Gate Spacing(GateSpacing)
  • Radar Constant(RadarConstant)
  • Signal to Noise Ratio(SignalToNoiseRatio)
  • Mean Noise Level(NoiseLevel)
  • First Order Estimate of Spectral Count Calibration(CalibrationConstant)
  • Receiver Cal Check Time Stamp(CalCheckTime)
  • Number of Spectral Averages(NumSpectralAverages)
  • Average Noise Level (S/N<0)(AvgNoiseLevel)

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