SGP/MMCR/C1 - TWTA Faulting

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.

• 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)

• Raw data stream - documentation not supported(raw)

• 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)

TWP/MMCR/C1 - Reprocess: Height Error

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.

• Array of heights for each power(heights)

• Height of Center of Each Range Bin(Heights)

• Raw data stream - documentation not supported(raw)

TWP/MMCR/C1 - Error in recorded heights

An error in MMCR configuration resulted in a timing error.  This caused erroneous height 
values (too large) to be recorded in the data files.

• Array of heights for each power(heights)

• Height of Center of Each Range Bin(Heights)

• Raw data stream - documentation not supported(raw)