Data Quality Reports for Session: 114007 User: gaun Completed: 09/05/2008

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D050124.3TWP/MMCR/C3 - Instrument failuretwpmmcrC3.00, twpmmcrcalC3.00, twpmmcrcalC3.a1, twpmmcrmonC3.00, twpmmcrmonC3.a1,
twpmmcrpowC3.00, twpmmcrpowC3.a1
D050427.1TWP/MMCR/C3 - MMCR InoperativetwpmmcrC3.00, twpmmcrcalC3.00, twpmmcrcalC3.a1, twpmmcrmomentsC3.00, twpmmcrmomentsC3.a1,
twpmmcrmonC3.00, twpmmcrmonC3.a1, twpmmcrpowC3.00, twpmmcrpowC3.a1
D050620.1TWP/MMCR/C3 - Reprocess: CalibrationtwpmmcrcalC3.a1
D060220.3TWP/MMCR/C3 - MMCR Power Monitor failuretwpmmcrcalC3.a1, twpmmcrpowC3.a1


DQRID : D050124.3
Start DateStart TimeEnd DateEnd Time
03/01/2005000003/07/20052030
Subject:
TWP/MMCR/C3 - Instrument failure
DataStreams:twpmmcrC3.00, twpmmcrcalC3.00, twpmmcrcalC3.a1, twpmmcrmonC3.00, twpmmcrmonC3.a1,
twpmmcrpowC3.00, twpmmcrpowC3.a1
Description:
The TWTA failed.
Measurements:twpmmcrcalC3.00:
  • null(Raw data stream - documentation not supported)
twpmmcrC3.00:
  • null(Raw data stream - documentation not supported)
twpmmcrmonC3.a1:
  • UPS Battery Current(UPSBatteryCurrent)
  • Interface Box -15V(InterfaceBoxMinus15Volts)
  • Radar PC -12V(RadarPCMinus12Volts)
  • Time offset of tweaks from base_time(time_offset)
  • lat(lat)
  • X axis Tilt of Radar(XAxisTilt)
  • Radar PC +5V(RadarPCPlus5Volts)
  • UPS Input Voltage(UPSInputVoltage)
  • Radar PC +12V(RadarPCPlus12Volts)
  • Interface Box +5V #2(InterfaceBoxPlus5Volts2)
  • Indoor Humidity(IndoorHumidity)
  • Y axis Tilt of Radar(YAxisTilt)
  • Interface Box +28V(InterfaceBoxPlus28Volts)
  • base time(base_time)
  • UPS Output Voltage(UPSOutputVoltage)
  • A/D Calibrated Voltage(ADCalVoltage)
  • RF CUD Receiver +12V(RFCUDRecPlus12Volts)
  • Interface Box +15V(InterfaceBoxPlus15Volts)
  • lon(lon)
  • RF CUD Transmitter +12V(RFCUDTxPlus12Volts)
  • Temperature, Circulator #2(TempCirc2)
  • Outdoor Temperature(OutdoorTemperature)
  • RF CUD +15V(RFCUDPlus15Volts)
  • Indoor Temperature(IndoorTemperature)
  • Pulse Width Fault(PulseWidthFault)
  • DMS PC +12V(DMSPCPlus12Volts)
  • UPS Battery Voltage(UPSBatteryVoltage)
  • Radar PC -5V(RadarPCMinus5Volts)
  • External IF Mod/Rec +12V(ExtIFModPlus12Volts)
  • Temperature, Circulator #1(TempCirc1)
  • Interface Box -5V(InterfaceBoxMinus5Volts)
  • 2GHz Phase-lock(2GHzPhaseLock)
  • DMS PC -5V(DMSPCMinus5Volts)
  • IF Mod/Rec -15V(IFModMinus15Volts)
  • Switch Fault(SwitchFault)
  • IF Mod/Rec +15V(IFModPlus15Volts)
  • UPS Output Current(UPSOutputCurrent)
  • Time Nanoseconds since the second(TimeNanoSeconds)
  • 16.4GHz Phase-lock(16GHzPhaseLock)
  • Dummy altitude for Zeb(alt)
  • DMS PC +5V(DMSPCPlus5Volts)
  • DMS PC -12V(DMSPCMinus12Volts)
  • Interface Box +5V #1(InterfaceBoxPlus5Volts1)
  • External IF Mod/Rec +15V(ExtIFModPlus15Volts)
  • Time remaining on UPS Battery(UPSBatteryTime)
twpmmcrpowC3.00:
  • null(Raw data stream - documentation not supported)
twpmmcrpowC3.a1:
  • Transmitted RF Power(TransmittedRFPower)
  • Dummy altitude for Zeb(alt)
  • lon(lon)
  • Time offset of tweaks from base_time(time_offset)
  • base time(base_time)
  • lat(lat)
  • Time Nanoseconds since the second(TimeNanoSeconds)
twpmmcrcalC3.a1:
  • Receiver Calib Noise Crv Cal. Power Values(RxCalibrationNoiseCrv)
  • Receiver Path Loss(ReceiverPathLoss)
  • Inter-Pulse Period(InterPulsePeriod)
  • lon(lon)
  • Coded Pulse Loss(CodedPulseLoss)
  • Circulator #1 Attenuation(CirculatorAttenuation1)
  • Pulse Width(PulseWidth)
  • lat(lat)
  • Time offset of tweaks from base_time(time_offset)
  • Number of Ffts(NumFft)
  • Delay to First Range Gate(StartGateDelay)
  • Transmitter Path Loss(TransmitterPathLoss)
  • base time(base_time)
  • Height of Center of Each Range Bin(Heights)
  • MMCR Reflectivity(Reflectivity)
  • Peak Transmitted Power(PeakTransmittedPower)
  • Number of Code Bits(NumCodeBits)
  • Number of Gate Heights(NumHeights)
  • Number of Spectra Averaged(NumSpectraAveraged)
  • Partial Decoding Loss(PartialDecodingLoss)
  • Dummy altitude for Zeb(alt)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Range Corrected, Calibrated Power(RangeCorrectedCalibratedPower)
  • Gate Spacing(GateSpacing)
  • Receiver Cal Noise Crv Sig Power Values(RxCalibrationNoiseCrvSignal)
twpmmcrmonC3.00:
  • null(Raw data stream - documentation not supported)

Back To Table of Contents

DQRID : D050427.1
Start DateStart TimeEnd DateEnd Time
01/30/2003000002/01/20050100
Subject:
TWP/MMCR/C3 - MMCR Inoperative
DataStreams:twpmmcrC3.00, twpmmcrcalC3.00, twpmmcrcalC3.a1, twpmmcrmomentsC3.00, twpmmcrmomentsC3.a1,
twpmmcrmonC3.00, twpmmcrmonC3.a1, twpmmcrpowC3.00, twpmmcrpowC3.a1
Description:
During this period, the MMCR at Darwin was cannibalized routinely to keep the Manus and 
Nauru MMCRs operational.  The largest downtime during this period was due to the 
replacement and repair of the antenna.  During attempts to "rebuild" the MMCR, data files may have 
been generated that are of no use.
Measurements:twpmmcrcalC3.00:
  • null(Raw data stream - documentation not supported)
twpmmcrC3.00:
  • null(Raw data stream - documentation not supported)
twpmmcrmonC3.a1:
  • Radar PC -12V(RadarPCMinus12Volts)
  • lat(lat)
  • Radar PC +5V(RadarPCPlus5Volts)
  • UPS Input Voltage(UPSInputVoltage)
  • Radar PC +12V(RadarPCPlus12Volts)
  • Interface Box +5V #2(InterfaceBoxPlus5Volts2)
  • Interface Box +28V(InterfaceBoxPlus28Volts)
  • RF CUD Receiver +12V(RFCUDRecPlus12Volts)
  • lon(lon)
  • Outdoor Temperature(OutdoorTemperature)
  • RF CUD +15V(RFCUDPlus15Volts)
  • DMS PC +12V(DMSPCPlus12Volts)
  • UPS Battery Voltage(UPSBatteryVoltage)
  • Temperature, Circulator #1(TempCirc1)
  • Interface Box -5V(InterfaceBoxMinus5Volts)
  • 2GHz Phase-lock(2GHzPhaseLock)
  • DMS PC -5V(DMSPCMinus5Volts)
  • IF Mod/Rec +15V(IFModPlus15Volts)
  • UPS Output Current(UPSOutputCurrent)
  • Time Nanoseconds since the second(TimeNanoSeconds)
  • 16.4GHz Phase-lock(16GHzPhaseLock)
  • Dummy altitude for Zeb(alt)
  • DMS PC -12V(DMSPCMinus12Volts)
  • Interface Box +5V #1(InterfaceBoxPlus5Volts1)
  • Time remaining on UPS Battery(UPSBatteryTime)
  • External IF Mod/Rec +15V(ExtIFModPlus15Volts)
  • UPS Battery Current(UPSBatteryCurrent)
  • Interface Box -15V(InterfaceBoxMinus15Volts)
  • Time offset of tweaks from base_time(time_offset)
  • X axis Tilt of Radar(XAxisTilt)
  • Indoor Humidity(IndoorHumidity)
  • Y axis Tilt of Radar(YAxisTilt)
  • base time(base_time)
  • UPS Output Voltage(UPSOutputVoltage)
  • A/D Calibrated Voltage(ADCalVoltage)
  • Interface Box +15V(InterfaceBoxPlus15Volts)
  • Temperature, Circulator #2(TempCirc2)
  • RF CUD Transmitter +12V(RFCUDTxPlus12Volts)
  • Indoor Temperature(IndoorTemperature)
  • Pulse Width Fault(PulseWidthFault)
  • Radar PC -5V(RadarPCMinus5Volts)
  • External IF Mod/Rec +12V(ExtIFModPlus12Volts)
  • IF Mod/Rec -15V(IFModMinus15Volts)
  • Switch Fault(SwitchFault)
  • DMS PC +5V(DMSPCPlus5Volts)
twpmmcrmomentsC3.00:
  • null(Raw data stream - documentation not supported)
twpmmcrpowC3.a1:
  • Dummy altitude for Zeb(alt)
  • lon(lon)
  • base time(base_time)
  • Time Nanoseconds since the second(TimeNanoSeconds)
  • Transmitted RF Power(TransmittedRFPower)
  • Time offset of tweaks from base_time(time_offset)
  • lat(lat)
twpmmcrpowC3.00:
  • null(Raw data stream - documentation not supported)
twpmmcrcalC3.a1:
  • Receiver Path Loss(ReceiverPathLoss)
  • Receiver Calib Noise Crv Cal. Power Values(RxCalibrationNoiseCrv)
  • Circulator #1 Attenuation(CirculatorAttenuation1)
  • Pulse Width(PulseWidth)
  • lat(lat)
  • Time offset of tweaks from base_time(time_offset)
  • Transmitter Path Loss(TransmitterPathLoss)
  • base time(base_time)
  • MMCR Reflectivity(Reflectivity)
  • Number of Gate Heights(NumHeights)
  • Partial Decoding Loss(PartialDecodingLoss)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Range Corrected, Calibrated Power(RangeCorrectedCalibratedPower)
  • Receiver Cal Noise Crv Sig Power Values(RxCalibrationNoiseCrvSignal)
  • Inter-Pulse Period(InterPulsePeriod)
  • lon(lon)
  • Coded Pulse Loss(CodedPulseLoss)
  • Number of Ffts(NumFft)
  • Delay to First Range Gate(StartGateDelay)
  • Height of Center of Each Range Bin(Heights)
  • Peak Transmitted Power(PeakTransmittedPower)
  • Number of Code Bits(NumCodeBits)
  • Number of Spectra Averaged(NumSpectraAveraged)
  • Dummy altitude for Zeb(alt)
  • Gate Spacing(GateSpacing)
twpmmcrmonC3.00:
  • null(Raw data stream - documentation not supported)
twpmmcrmomentsC3.a1:
  • Inter-Pulse Period(InterPulsePeriod)
  • Signal to Noise Ratio(SignalToNoiseRatio)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • 10000 * [MeanDopperVelocity(m/s) / NyquistVelocity(m/s)](MeanDopplerValue)
  • Gate Spacing(GateSpacing)
  • Height of Center of Each Range Bin(Heights)
  • 1000 * log10 (noise signal level)(Noise)
  • Number of Gate Heights(NumHeights)
  • lon(lon)
  • Number of Spectra Averaged(NumSpectraAveraged)
  • Number of Code Bits(NumCodeBits)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • lat(lat)
  • base time(base_time)
  • Time offset of tweaks from base_time(time_offset)
  • Pulse Width(PulseWidth)
  • Rx bandwidtch switch code(Switch)
  • 10000 * [SpectralWidth(m/s) / NyquistVelocity(m/s)](SpectralWidthValue)
  • Delay thgrough Rx(Delay)
  • Delay to First Range Gate(StartGateDelay)
  • Number of Ffts(NumFft)
  • Dummy altitude for Zeb(alt)

Back To Table of Contents

DQRID : D050620.1
Start DateStart TimeEnd DateEnd Time
02/01/2005010006/19/20052145
Subject:
TWP/MMCR/C3 - Reprocess: Calibration
DataStreams:twpmmcrcalC3.a1
Description:
The Solaris computer was changed out in late January.  The antenna parameters were not 
changed when this happened so that the SGP's antenna gain and beamwidths were used to 
calculate the radar constant.  This results in an underestimation of 4.69 dB in reflectivity.  

The difference in antenna gain is 57.2-52.73 dB or 4.47 dB.  Since the gain is squared in 
the denominator of the radar constant, this results in an error of 8.94 dB due to the 
antenna gain alone.

The difference in beamwidth is 0.19 to 0.31.  20log(.19/.31) = -4.25 dB.

Total reflectivity error = 8.94 dB - 4.25 dB = 4.69 dB
Measurements:twpmmcrcalC3.a1:
  • MMCR Reflectivity(Reflectivity)

Back To Table of Contents

DQRID : D060220.3
Start DateStart TimeEnd DateEnd Time
02/01/2005010011/04/20050600
Subject:
TWP/MMCR/C3 - MMCR Power Monitor failure
DataStreams:twpmmcrcalC3.a1, twpmmcrpowC3.a1
Description:
During this period, the transmit power monitor on the TWTA was not working.  This resulted 
in the power level reading staying at a steady state (approximately 49 dBm).  Normal 
transmitter fluctuations are expected to be on the order of +/- 0.3 dBm.
Measurements:twpmmcrcalC3.a1:
  • MMCR Reflectivity(Reflectivity)
twpmmcrpowC3.a1:
  • Transmitted RF Power(TransmittedRFPower)

Back To Table of Contents


END OF DATA