DQRID : D100209.2
Start DateStart TimeEnd DateEnd Time
08/12/2009000003/01/20101553
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Subject:
SGP/AERI/C1 - Detector Temperature Sensor Failure
DataStreams:sgpaeriengineerC1.b1, sgpaerich1C1.b1, sgpaerisummaryC1.b1, sgpaerich2C1.b1
Description:
The detector temperature is incorrect because a diode has failed inside the 
dewar/detector. The data collected from the diode is not utilized to process data measurements but only 
to confirm that the detector is operating at acceptable temperatures. A decision was 
made to not repair the diode but to periodically confirm that data measurements are valid. 
To do that, we compared measurement data to coincident data collected by the co-located 
SGP AERI-01 instrument.
Suggestions: 
null
Measurements:sgpaerisummaryC1.b1:
  • AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENestimateNo1Ch1)
  • Shortwave radiance average (2295_2300 cm^-1) Surface Air(surfaceLayerRadiance2295_2300)
  • AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectralAveragesCh2)
  • Shortwave radiance average (2282_2287 cm^-1) elevated air(elevatedLayerRadiance2282_2287)
  • AERI LW responsivity spectral averages (ch1)(ResponsivitySpectralAveragesCh1)
  • Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
  • Longwave HBB noise-equivalent radiance(LW_HBB_NEN)
  • Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
  • Shortwave surface air brightness temperature from radiance average (2295_2300
    cm-1)(surfaceLayerAirTemp2295_2300)
  • Radiance standard deviation during sky view averaged over (2510_2515 cm^-1)(skyViewStdDevRadiance2510_2515)
  • AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENestimateNo1Ch2)
  • Averaged Wave number in inverse centimeters(wnumsum3)
  • Averaged wave number for SW responsivity spectral averages(wnumsum2)
  • Averaged wave number for LW responsivity spectral averages(wnumsum1)
  • Averaged wave number for LW HBB 2min NESR estimate number 1 (ch1)(wnumsum7)
  • Averaged wave number for SW scene NESR spectral averages (ch2)(wnumsum6)
  • Wave number in reciprocal centimeters(wnumsum5)
  • Averaged Wave number in inverse centimeters(wnumsum4)
  • Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
  • Shortwave elevated air brightness temperature from radiance average (2282_2287
    cm-1)(elevatedLayerAirTemp2282_2287)
  • Averaged Wave number in inverse centimeters(wnumsum9)
  • Averaged Wave number in inverse centimeters(wnumsum8)
  • The noise equivalent radiance observed in the longwave channel during a sky view
    at 1000 cm-1(LWskyNEN)
  • Shortwave window radiance average (2510_2515 cm^-1)(shortwaveWindowRadiance2510_2515)
  • Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
  • Longwave radiance average (700_705 cm^-1) elevated air(elevatedLayerRadiance700_705)
  • Longwave window brightness temperature from radiance average (985_990 cm^-1)(longwaveWindowAirTemp985_990)
  • Characteristic value representing overall longwave channel responsivity(LWresponsivity)
  • AERI LW scene brightness temp spectral averages (ch1)(SkyBrightnessTempSpectralAveragesCh1)
  • Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
  • AERI SW scene brightness temp spectral averages (ch2)(SkyBrightnessTempSpectralAveragesCh2)
  • Radiance standard deviation during sky view averaged over (2295_2300 cm^-1)(skyViewStdDevRadiance2295_2300)
  • Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
  • Longwave window radiance average (985_990 cm^-1)(longwaveWindowRadiance985_990)
  • AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
  • Averaged wave number for SW HBB 2min NESR estimate number 2 (ch2)(wnumsum10)
  • AERI SW scene radiance spectral averages (ch2)(SkyRadianceSpectralAveragesCh2)
  • Longwave elevated air brightness temperature from radiance average (700_705
    cm-1)(elevatedLayerAirTemp700_705)
  • Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
  • AERI LW scene NESR spectral averages (ch1)(SkyNENCh1)
  • AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENCh2)
  • AERI LW HBB 2min NESR estimate #2 derived from sequential HBB views (ch1)(HBB2minNENestimateNo2Ch1)
  • AERI SW HBB 2min NESR estimate #2 derived from sequential HBB views (ch2)(HBB2minNENestimateNo2Ch2)
  • The noise equivalent radiance observed in the shortwave channel during a sky
    view at 2500 cm^-1(SWskyNEN)
  • Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
  • Shortwave HBB Noise-equivalent Radiance(SW_HBB_NEN)
  • Averaged wave number for SW scene radiance spectral averages (ch2)(wnumsum12)
  • Wave number in reciprocal centimeters(wnumsum11)
  • Averaged wave number for SW scene brightness temp spectral averages (ch2)(wnumsum14)
  • Averaged Wave number in inverse centimeters(wnumsum13)
  • Radiance standard deviation during sky view averaged over (985_990 cm^-1)(skyViewStdDevRadiance985_990)
more
sgpaerich1C1.b1:
  • Mean of radiance spectra ensemble(mean_rad)
more
sgpaerich2C1.b1:
  • Mean of radiance spectra ensemble(mean_rad)
more
sgpaeriengineerC1.b1:
  • Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
  • The noise equivalent radiance observed in the longwave channel during a sky view
    at 1000 cm-1(LWskyNEN)
  • Shortwave surface air brightness temperature from radiance average (2295_2300
    cm-1)(surfaceLayerAirTemp2295_2300)
  • Shortwave radiance average (2282_2287 cm^-1) elevated air(elevatedLayerRadiance2282_2287)
  • Sky View Imaginary Radiance (2295_2300 cm^-1)(skyViewImaginaryRadiance2295_2300)
  • The noise equivalent radiance observed in the shortwave channel during a sky
    view at 2500 cm^-1(SWskyNEN)
  • Radiance standard deviation during ambient blackbody view averaged over (985_990
    cm-1)(ABBviewStdDevRadiance985_990)
  • Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
  • ABB View Radiance Std Deviation (2282_2287 cm^-1)(ABBviewStdDevRadiance2282_2287)
  • Longwave window radiance average (985_990 cm^-1)(longwaveWindowRadiance985_990)
  • Sky View Imaginary Radiance (700_705 cm^-1)(skyViewImaginaryRadiance700_705)
  • HBB view radiance standard deviation (700_705 cm^-1)(HBBviewStdDevRadiance700_705)
  • Sky View Imaginary Radiance (675_680 cm^-1)(skyViewImaginaryRadiance675_680)
  • Longwave HBB noise-equivalent radiance(LW_HBB_NEN)
  • Longwave radiance average (700_705 cm^-1) elevated air(elevatedLayerRadiance700_705)
  • Detector Temperature(detectorTemp)
  • HBB View Radiance Std Deviation (2295_2300 cm^-1)(HBBviewStdDevRadiance2295_2300)
  • ABB view radiance standard deviation (2510_2515 cm^-1)(ABBviewStdDevRadiance2510_2515)
  • HBB view radiance standard deviation (675_680 cm^-1)(HBBviewStdDevRadiance675_680)
  • Longwave window brightness temperature from radiance average (985_990 cm^-1)(longwaveWindowAirTemp985_990)
  • Shortwave window radiance average (2510_2515 cm^-1)(shortwaveWindowRadiance2510_2515)
  • Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
  • ABB View Radiance Std Deviation (2295_2300 cm^-1)(ABBviewStdDevRadiance2295_2300)
  • Longwave elevated air brightness temperature from radiance average (700_705
    cm-1)(elevatedLayerAirTemp700_705)
  • Sky view imaginary radiance (2282_2287 cm^-1)(skyViewImaginaryRadiance2282_2287)
  • Shortwave HBB Noise-equivalent Radiance(SW_HBB_NEN)
  • Shortwave radiance average (2295_2300 cm^-1) Surface Air(surfaceLayerRadiance2295_2300)
  • ABB view radiance standard deviation (700_705 cm^-1)(ABBviewStdDevRadiance700_705)
  • Characteristic value representing overall longwave channel responsivity(LWresponsivity)
  • Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
  • Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
  • HBB view radiance standard deviation (2282_2287 cm^-1)(HBBviewStdDevRadiance2282_2287)
  • Imaginary radiance during sky view averaged over (2510_2515 cm-1)(skyViewImaginaryRadiance2510_2515)
  • Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
  • HBB view radiance standard deviation (2510_2515 cm^-1)(HBBviewStdDevRadiance2510_2515)
  • Radiance standard deviation during sky view averaged over (2510_2515 cm^-1)(skyViewStdDevRadiance2510_2515)
  • Radiance standard deviation during sky view averaged over (985_990 cm^-1)(skyViewStdDevRadiance985_990)
  • Shortwave elevated air brightness temperature from radiance average (2282_2287
    cm-1)(elevatedLayerAirTemp2282_2287)
  • Radiance standard deviation during sky view averaged over (2295_2300 cm^-1)(skyViewStdDevRadiance2295_2300)
  • HBB view radiance standard deviation (985_990 cm^-1)(HBBviewStdDevRadiance985_990)
  • ABB View Radiance Std Deviation (675_680 cm^-1)(ABBviewStdDevRadiance675_680)
  • Imaginary radiance during sky view averaged over (985_990 cm-1)(skyViewImaginaryRadiance985_990)
  • Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
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