DQRID : D020912.2
Start DateStart TimeEnd DateEnd Time
09/07/2002120009/12/20021600
more
Subject:
TWP/MMCR/C1 - Reprocess:Erroneous calibration on ARCS-1 MMCR
DataStreams:twpmmcrpowC1.a1, twpmmcrmonC1.a1, twpmmcrmonC1.00, twpmmcrpowC1.00, twpmmcrmomentsC1.a1,
twpmmcrmomentsC1.00
Description:
On 9/7/2002 the automatic calibration happened as it was scheduled.  At that point, the 
reflectivity values became unrealistic.  The software is supposed to ignore the calibration 
if it is more than 10%(?) of the previous calibration.  I copied the prior good 
calibration file to restore accurate readings.  The data for this period will need to be 
reprocessed with the correct calibration file.
Suggestions: 
Measurements:twpmmcrmonC1.a1:
  • External IF Mod/Rec +12V(ExtIFModPlus12Volts)
  • Interface Box +15V(InterfaceBoxPlus15Volts)
  • lon(lon)
  • Interface Box -15V(InterfaceBoxMinus15Volts)
  • UPS Battery Voltage(UPSBatteryVoltage)
  • RF CUD Receiver +12V(RFCUDRecPlus12Volts)
  • A/D Calibrated Voltage(ADCalVoltage)
  • Indoor Humidity(IndoorHumidity)
  • IF Mod/Rec -15V(IFModMinus15Volts)
  • -180.0 - +180.0(alt)
  • North Latitude(lat)
  • Indoor Temperature(IndoorTemperature)
  • Interface Box +28V(InterfaceBoxPlus28Volts)
  • DMS PC +12V(DMSPCPlus12Volts)
  • RF CUD Transmitter +12V(RFCUDTxPlus12Volts)
  • Radar PC -12V(RadarPCMinus12Volts)
  • UPS Input Voltage(UPSInputVoltage)
  • Pulse Width Fault(PulseWidthFault)
  • Y axis Tilt of Radar(YAxisTilt)
  • External IF Mod/Rec +15V(ExtIFModPlus15Volts)
  • DMS PC -5V(DMSPCMinus5Volts)
  • 2GHz Phase-lock(2GHzPhaseLock)
  • 16.4GHz Phase-lock(16GHzPhaseLock)
  • base time in epoch(base_time)
  • Switch Fault(SwitchFault)
  • DMS PC +5V(DMSPCPlus5Volts)
  • Time remaining on UPS Battery(UPSBatteryTime)
  • Interface Box +5V #1(InterfaceBoxPlus5Volts1)
  • Interface Box +5V #2(InterfaceBoxPlus5Volts2)
  • Time Nanoseconds since the second(TimeNanoSeconds)
  • Temperature, Circulator #1(TempCirc1)
  • RF CUD +15V(RFCUDPlus15Volts)
  • Temperature, Circulator #2(TempCirc2)
  • Interface Box -5V(InterfaceBoxMinus5Volts)
  • IF Mod/Rec +15V(IFModPlus15Volts)
  • Radar PC -5V(RadarPCMinus5Volts)
  • UPS Battery Current(UPSBatteryCurrent)
  • Radar PC +5V(RadarPCPlus5Volts)
  • UPS Output Voltage(UPSOutputVoltage)
  • Radar PC +12V(RadarPCPlus12Volts)
  • DMS PC -12V(DMSPCMinus12Volts)
  • UPS Output Current(UPSOutputCurrent)
  • Outdoor Temperature(OutdoorTemperature)
  • Time offset from base_time(time_offset)
  • X axis Tilt of Radar(XAxisTilt)
more
twpmmcrmonC1.00:
  • (Raw data stream - documentation not supported)
more
twpmmcrmomentsC1.a1:
  • Number of Ffts(NumFft)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • lon(lon)
  • Signal to Noise Ratio(SignalToNoiseRatio)
  • Delay to First Range Gate(StartGateDelay)
  • Inter-Pulse Period(InterPulsePeriod)
  • Number of Code Bits(NumCodeBits)
  • base time in epoch(base_time)
  • Number of Spectra Averaged(NumSpectraAveraged)
  • Pulse Width(PulseWidth)
  • 10000 * [MeanDopperVelocity(m/s) / NyquistVelocity(m/s)](MeanDopplerValue)
  • -180.0 - +180.0(alt)
  • Rx bandwidtch switch code(Switch)
  • North Latitude(lat)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • Delay through Rx(Delay)
  • Calculated Noise(Noise)
  • Number of Range Gates(NumHeights)
  • Gate Spacing(GateSpacing)
  • Range Heights (center of radar sample volume)(Heights)
  • 10000 * [SpectralWidth(m/s) / NyquistVelocity(m/s)](SpectralWidthValue)
  • Time offset from base_time(time_offset)
more
twpmmcrmomentsC1.00:
  • (Raw data stream - documentation not supported)
more
twpmmcrpowC1.a1:
  • Transmitted RF Power(TransmittedRFPower)
  • Time offset from base_time(time_offset)
  • -180.0 - +180.0(alt)
  • Time Nanoseconds since the second(TimeNanoSeconds)
  • lon(lon)
  • North Latitude(lat)
  • base time in epoch(base_time)
more
twpmmcrpowC1.00:
  • (Raw data stream - documentation not supported)
more

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