Data Quality Reports for Session: 109258 User: gnk Completed: 12/05/2007

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D070112.1TWP/MMCR/C1 - Reprocess: Height ErrortwpmmcrmomC1.00, twpmmcrmomC1.b1, twpmmcrspecmomC1.a0
D070125.1TWP/MMCR/C1 - Phase lock faultstwpmmcrmomC1.00, twpmmcrmomC1.b1, twpmmcrspecmomC1.a0
D070131.1TWP/MMCR/C1 - Receiver locked uptwpmmcrmomC1.00, twpmmcrmomC1.b1, twpmmcrspecmomC1.a0
D070705.2TWP/MMCR/C1 - Receiver LockuptwpmmcrmomC1.b1, twpmmcrspecmomC1.a0


DQRID : D070112.1
Start DateStart TimeEnd DateEnd Time
06/16/2006030001/11/20071620
Subject:
TWP/MMCR/C1 - Reprocess: Height Error
DataStreams:twpmmcrmomC1.00, twpmmcrmomC1.b1, twpmmcrspecmomC1.a0
Description:
A timing error was found in the PIRAQ MMCR's.  It resulted in recorded heights being too 
high for each radar mode by the following amounts: 
Mode 1: 24.8756 m too high
Mode 2: 25.6249 m too high
Mode 3: 33.1176 m too high
Mode 4: 33.1176 m too high
Range gate spacing was not affected.
Measurements:twpmmcrmomC1.b1:
  • Array of heights for each power(heights)
twpmmcrspecmomC1.a0:
  • Height of Center of Each Range Bin(Heights)
twpmmcrmomC1.00:
  • Raw data stream - documentation not supported(raw)

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DQRID : D070125.1
Start DateStart TimeEnd DateEnd Time
01/25/2007063001/25/20071525
Subject:
TWP/MMCR/C1 - Phase lock faults
DataStreams:twpmmcrmomC1.00, twpmmcrmomC1.b1, twpmmcrspecmomC1.a0
Description:
Phase lock faults on the coherent up/down converter (CUDC) caused a receiver failure.  
Cycling the power on the CUDC brought the MMCR back to normal operation.
Measurements:twpmmcrmomC1.b1:
  • Power (uncalibrated)(Power)
  • Minimum detectable reflectivity(MinimumDetectableReflectivity)
  • lon(lon)
  • Peak tranmitted power, averaged over the course of the hour(PeakTransmittedPowerAvg)
  • Mean Noise Level(NoiseLevel)
  • MMCR Spectral Width(SpectralWidth)
  • Number of Points in FFT(NumFFT)
  • Receiver Gain(RxGain)
  • Time offset of tweaks from base_time(time_offset)
  • TWT Status Code, details forthcoming from MMCR vendor(TWTStatusCode)
  • Number of Receiver(NumReceivers)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Dummy altitude for Zeb(alt)
  • Pulse Width(PulseWidth)
  • Data Quality Status(DataQualityStatus)
  • Radar Constant(RadarConstant)
  • Current Receiver Number(ReceiverNumber)
  • Circular Depolarization Ratio(CircularDepolarizationRatio)
  • MMCR Reflectivity(Reflectivity)
  • Receiver Cal Check Time Stamp(CalCheckTime)
  • Inter-Pulse Period(InterPulsePeriod)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Operating Set for this Record(ModeNum)
  • base time(base_time)
  • Receiver Cal Time Stamp(RxCalTimeStamp)
  • Receiver Mode(ReceiverMode)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • lat(lat)
  • Array of heights for each power(heights)
  • Range Corrected Calibrated Power(RangeCorrectedPower)
  • Max. height of clutter removal(ClutterHeight)
  • Average Noise Level (S/N<0)(AvgNoiseLevel)
  • Receiver 290K Level(Rx290KLevel)
  • Receiver Sky Noise(SkyNoiseLevel)
  • time(time)
  • Delay to First Range Gate(StartGateDelay)
  • Windowing ON-OFF Status(WindowingONOFF)
  • Gate Spacing(GateSpacing)
  • Number of Code Bits(NumCodeBits)
  • radar mode char identifier(ModeDescription)
  • Receiver Cal Check Level(CalCheckLevel)
  • Time associated with hourly averaged values(TimeAvg)
  • Number of Gate Heights(NumHeights)
  • DC Filtering ON-OFF Status(DCFilterONOFF)
  • Signal to Noise Ratio(SignalToNoiseRatio)
  • Number of Spectral Averages(NumSpectralAverages)
twpmmcrspecmomC1.a0:
  • Time offset of tweaks from base_time(time_offset)
  • Average Noise Level (S/N<0)(AvgNoiseLevel)
  • Dummy altitude for Zeb(alt)
  • Receiver Gain(RxGain)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • Number of Code Bits(NumCodeBits)
  • Number of Gate Heights(NumHeights)
  • Range Corrected Calibrated Power(RangeCorrectedPower)
  • Signal to Noise Ratio(SignalToNoiseRatio)
  • Receiver Mode(ReceiverMode)
  • base time(base_time)
  • Windowing ON-OFF Status(WindowingONOFF)
  • Inter-Pulse Period(InterPulsePeriod)
  • Receiver Cal Time Stamp(RxCalTimeStamp)
  • lat(lat)
  • Height of Center of Each Range Bin(Heights)
  • Pulse Width(PulseWidth)
  • Spectral Data(Spectra)
  • Power (uncalibrated)(Power)
  • lon(lon)
  • Gate Spacing(GateSpacing)
  • Data Quality Status(DataQualityStatus)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Current Receiver Number(ReceiverNumber)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Radar Constant(RadarConstant)
  • Receiver Sky Noise(SkyNoiseLevel)
  • Receiver 290K Level(Rx290KLevel)
  • Elevation(Elevation)
  • First Order Estimate of Spectral Count Calibration(CalibrationConstant)
  • Mean Noise Level(NoiseLevel)
  • Receiver Cal Check Level(CalCheckLevel)
  • DC Filtering ON-OFF Status(DCFilterONOFF)
  • Receiver Cal Check Time Stamp(CalCheckTime)
  • Azimuth(Azimuth)
  • Number of Points in FFT(NumFFT)
  • Max. height of clutter removal(ClutterHeight)
  • radar mode char identifier(ModeDescription)
  • Number of Receiver(NumReceivers)
  • Circular Depolarization Ratio(CircularDepolarizationRatio)
  • Minimum detectable reflectivity(MinimumDetectableReflectivity)
  • Operating Set for this Record(ModeNum)
  • MMCR Reflectivity(Reflectivity)
  • Number of Spectral Averages(NumSpectralAverages)
  • MMCR Spectral Width(SpectralWidth)
  • Delay to First Range Gate(StartGateDelay)
twpmmcrmomC1.00:
  • Raw data stream - documentation not supported(raw)

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DQRID : D070131.1
Start DateStart TimeEnd DateEnd Time
01/27/2007220001/31/20070100
Subject:
TWP/MMCR/C1 - Receiver locked up
DataStreams:twpmmcrmomC1.00, twpmmcrmomC1.b1, twpmmcrspecmomC1.a0
Description:
The MMCR receiver "locked up" and was not receiving during this period.
Measurements:twpmmcrmomC1.b1:
  • Power (uncalibrated)(Power)
  • Minimum detectable reflectivity(MinimumDetectableReflectivity)
  • lon(lon)
  • Peak tranmitted power, averaged over the course of the hour(PeakTransmittedPowerAvg)
  • Mean Noise Level(NoiseLevel)
  • MMCR Spectral Width(SpectralWidth)
  • Number of Points in FFT(NumFFT)
  • Receiver Gain(RxGain)
  • Time offset of tweaks from base_time(time_offset)
  • TWT Status Code, details forthcoming from MMCR vendor(TWTStatusCode)
  • Number of Receiver(NumReceivers)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Dummy altitude for Zeb(alt)
  • Pulse Width(PulseWidth)
  • Data Quality Status(DataQualityStatus)
  • Radar Constant(RadarConstant)
  • Current Receiver Number(ReceiverNumber)
  • Circular Depolarization Ratio(CircularDepolarizationRatio)
  • MMCR Reflectivity(Reflectivity)
  • Receiver Cal Check Time Stamp(CalCheckTime)
  • Inter-Pulse Period(InterPulsePeriod)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Operating Set for this Record(ModeNum)
  • base time(base_time)
  • Receiver Cal Time Stamp(RxCalTimeStamp)
  • Receiver Mode(ReceiverMode)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • lat(lat)
  • Array of heights for each power(heights)
  • Range Corrected Calibrated Power(RangeCorrectedPower)
  • Max. height of clutter removal(ClutterHeight)
  • Average Noise Level (S/N<0)(AvgNoiseLevel)
  • Receiver 290K Level(Rx290KLevel)
  • Receiver Sky Noise(SkyNoiseLevel)
  • time(time)
  • Delay to First Range Gate(StartGateDelay)
  • Windowing ON-OFF Status(WindowingONOFF)
  • Gate Spacing(GateSpacing)
  • Number of Code Bits(NumCodeBits)
  • radar mode char identifier(ModeDescription)
  • Receiver Cal Check Level(CalCheckLevel)
  • Time associated with hourly averaged values(TimeAvg)
  • Number of Gate Heights(NumHeights)
  • DC Filtering ON-OFF Status(DCFilterONOFF)
  • Signal to Noise Ratio(SignalToNoiseRatio)
  • Number of Spectral Averages(NumSpectralAverages)
twpmmcrspecmomC1.a0:
  • Time offset of tweaks from base_time(time_offset)
  • Average Noise Level (S/N<0)(AvgNoiseLevel)
  • Dummy altitude for Zeb(alt)
  • Receiver Gain(RxGain)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • Number of Code Bits(NumCodeBits)
  • Number of Gate Heights(NumHeights)
  • Range Corrected Calibrated Power(RangeCorrectedPower)
  • Signal to Noise Ratio(SignalToNoiseRatio)
  • Receiver Mode(ReceiverMode)
  • base time(base_time)
  • Windowing ON-OFF Status(WindowingONOFF)
  • Inter-Pulse Period(InterPulsePeriod)
  • Receiver Cal Time Stamp(RxCalTimeStamp)
  • lat(lat)
  • Height of Center of Each Range Bin(Heights)
  • Pulse Width(PulseWidth)
  • Spectral Data(Spectra)
  • Power (uncalibrated)(Power)
  • lon(lon)
  • Gate Spacing(GateSpacing)
  • Data Quality Status(DataQualityStatus)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Current Receiver Number(ReceiverNumber)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Radar Constant(RadarConstant)
  • Receiver Sky Noise(SkyNoiseLevel)
  • Receiver 290K Level(Rx290KLevel)
  • Elevation(Elevation)
  • First Order Estimate of Spectral Count Calibration(CalibrationConstant)
  • Mean Noise Level(NoiseLevel)
  • Receiver Cal Check Level(CalCheckLevel)
  • DC Filtering ON-OFF Status(DCFilterONOFF)
  • Receiver Cal Check Time Stamp(CalCheckTime)
  • Azimuth(Azimuth)
  • Number of Points in FFT(NumFFT)
  • Max. height of clutter removal(ClutterHeight)
  • radar mode char identifier(ModeDescription)
  • Number of Receiver(NumReceivers)
  • Circular Depolarization Ratio(CircularDepolarizationRatio)
  • Minimum detectable reflectivity(MinimumDetectableReflectivity)
  • Operating Set for this Record(ModeNum)
  • MMCR Reflectivity(Reflectivity)
  • Number of Spectral Averages(NumSpectralAverages)
  • MMCR Spectral Width(SpectralWidth)
  • Delay to First Range Gate(StartGateDelay)
twpmmcrmomC1.00:
  • Raw data stream - documentation not supported(raw)

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DQRID : D070705.2
Start DateStart TimeEnd DateEnd Time
06/20/2007130006/25/20071700
Subject:
TWP/MMCR/C1 - Receiver Lockup
DataStreams:twpmmcrmomC1.b1, twpmmcrspecmomC1.a0
Description:
The receiver locked up resulting in useless data.  The problem was corrected when the 
computer was rebooted.
Measurements:twpmmcrmomC1.b1:
  • Power (uncalibrated)(Power)
  • Minimum detectable reflectivity(MinimumDetectableReflectivity)
  • lon(lon)
  • Peak tranmitted power, averaged over the course of the hour(PeakTransmittedPowerAvg)
  • Mean Noise Level(NoiseLevel)
  • MMCR Spectral Width(SpectralWidth)
  • Number of Points in FFT(NumFFT)
  • Receiver Gain(RxGain)
  • Time offset of tweaks from base_time(time_offset)
  • TWT Status Code, details forthcoming from MMCR vendor(TWTStatusCode)
  • Number of Receiver(NumReceivers)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Dummy altitude for Zeb(alt)
  • Pulse Width(PulseWidth)
  • Data Quality Status(DataQualityStatus)
  • Radar Constant(RadarConstant)
  • Current Receiver Number(ReceiverNumber)
  • Circular Depolarization Ratio(CircularDepolarizationRatio)
  • MMCR Reflectivity(Reflectivity)
  • Receiver Cal Check Time Stamp(CalCheckTime)
  • Inter-Pulse Period(InterPulsePeriod)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Operating Set for this Record(ModeNum)
  • base time(base_time)
  • Receiver Cal Time Stamp(RxCalTimeStamp)
  • Receiver Mode(ReceiverMode)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • lat(lat)
  • Array of heights for each power(heights)
  • Range Corrected Calibrated Power(RangeCorrectedPower)
  • Max. height of clutter removal(ClutterHeight)
  • Average Noise Level (S/N<0)(AvgNoiseLevel)
  • Receiver 290K Level(Rx290KLevel)
  • Receiver Sky Noise(SkyNoiseLevel)
  • time(time)
  • Delay to First Range Gate(StartGateDelay)
  • Windowing ON-OFF Status(WindowingONOFF)
  • Gate Spacing(GateSpacing)
  • Number of Code Bits(NumCodeBits)
  • radar mode char identifier(ModeDescription)
  • Receiver Cal Check Level(CalCheckLevel)
  • Time associated with hourly averaged values(TimeAvg)
  • Number of Gate Heights(NumHeights)
  • DC Filtering ON-OFF Status(DCFilterONOFF)
  • Signal to Noise Ratio(SignalToNoiseRatio)
  • Number of Spectral Averages(NumSpectralAverages)
twpmmcrspecmomC1.a0:
  • Time offset of tweaks from base_time(time_offset)
  • Average Noise Level (S/N<0)(AvgNoiseLevel)
  • Dummy altitude for Zeb(alt)
  • Receiver Gain(RxGain)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • Number of Code Bits(NumCodeBits)
  • Number of Gate Heights(NumHeights)
  • Range Corrected Calibrated Power(RangeCorrectedPower)
  • Signal to Noise Ratio(SignalToNoiseRatio)
  • Receiver Mode(ReceiverMode)
  • base time(base_time)
  • Windowing ON-OFF Status(WindowingONOFF)
  • Inter-Pulse Period(InterPulsePeriod)
  • Receiver Cal Time Stamp(RxCalTimeStamp)
  • lat(lat)
  • Height of Center of Each Range Bin(Heights)
  • Pulse Width(PulseWidth)
  • Spectral Data(Spectra)
  • Power (uncalibrated)(Power)
  • lon(lon)
  • Gate Spacing(GateSpacing)
  • Data Quality Status(DataQualityStatus)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Current Receiver Number(ReceiverNumber)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Radar Constant(RadarConstant)
  • Receiver Sky Noise(SkyNoiseLevel)
  • Receiver 290K Level(Rx290KLevel)
  • Elevation(Elevation)
  • First Order Estimate of Spectral Count Calibration(CalibrationConstant)
  • Mean Noise Level(NoiseLevel)
  • Receiver Cal Check Level(CalCheckLevel)
  • DC Filtering ON-OFF Status(DCFilterONOFF)
  • Receiver Cal Check Time Stamp(CalCheckTime)
  • Azimuth(Azimuth)
  • Number of Points in FFT(NumFFT)
  • Max. height of clutter removal(ClutterHeight)
  • radar mode char identifier(ModeDescription)
  • Number of Receiver(NumReceivers)
  • Circular Depolarization Ratio(CircularDepolarizationRatio)
  • Minimum detectable reflectivity(MinimumDetectableReflectivity)
  • Operating Set for this Record(ModeNum)
  • MMCR Reflectivity(Reflectivity)
  • Number of Spectral Averages(NumSpectralAverages)
  • MMCR Spectral Width(SpectralWidth)
  • Delay to First Range Gate(StartGateDelay)

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