SGP/AERI/C1 - Failing interferometer

The interferometer of the sgp.C1 AERI system began to fail around 1 Aug 2007. In this 
period of time, the interferometer was occasionally 'losing a fringe' and thus introducing 
phase shift errors into the data.  After this happened a number of times, the 
interferometer would lock up and no data could be collected until site operations reset the instrument.  

Not all of the data collected during this period are bad (only the samples that were 
affected by a phase shift -- about 10% to 25% of data collected each month during the period 
were bad) while the rest of the data is of good quality.

The instrument mentor has created Data Quality files that users can use to identify these 
bad samples and exclude them from their analysis.  Thus, the data for this period are 
coded "suspect", because the lion's share of points are actually good but there is a fair 
number of samples that are bad and should not be used.

null

• -180.0 - +180.0(alt)
• North Latitude(lat)
• Mean of radiance spectra ensemble(mean_rad)
• Relative humidity measured near Blackbodies. Use with air temperature near BBs
  only.(atmosphericRelativeHumidity)
• Scene mirror view angle in non-negative degrees, measured clockwise from nadir
  looking into interferometer window(sceneMirrorAngle)
• Boolean with negative error conditions: 1:Open 0:Closed -1:Fault -2:Outside
  Valid Range -3:Neither Open Nor Closed(hatchOpen)
• Character string containing instrument name(instrumentUnitNumber)
• Ambient air temperature at hatch opening(outsideAirTemp)
• AERI instrument data channel number(channelNumber)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• base time in epoch(base_time)
• Calibrated scene type identification(calibratedSceneID)
• wavenumbers for mean radiance spectra(wnum)
• Observation latitude(Latitude)
• Version number of Operational Software(systemReleaseNumber)
• Wave number in reciprocal centimeters(wnum2)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• AERI instrument unit serial number(AERIunitNumber)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Observation altitude(Altitude)
• Time in decimal format at center of AERI sky observation period(Time_UTC_hours)
• lon(lon)
• Observation date(dateYYMMDD)
• BB Support Structure Temperature(BBsupportStructureTemp)
• time_in_seconds_since_volume_start(time)
• Julian Day including day and fraction of day(JulianDay)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Time at center of AERI sky observation period(timeHHMMSS)
• Time offset from base_time(time_offset)
• Difference between the sky view\'s radiance variance and the hot black body
  view\'s variance(standard_dev_mean_rad)
• Observation longitude(Longitude)
• Duration of scene view(sceneViewDuration)
• Logical flag indicating that a data record is missing (true/false)(missingDataFlag)

• Character string containing instrument name(instrumentUnitNumber)
• Mean of radiance spectra ensemble(mean_rad)
• lon(lon)
• Observation date(dateYYMMDD)
• AERI instrument data channel number(channelNumber)
• Observation longitude(Longitude)
• Difference between the sky view\'s radiance variance and the hot black body
  view\'s variance(standard_dev_mean_rad)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Duration of scene view(sceneViewDuration)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Ambient air temperature at hatch opening(outsideAirTemp)
• BB Support Structure Temperature(BBsupportStructureTemp)
• base time in epoch(base_time)
• Logical flag indicating that a data record is missing (true/false)(missingDataFlag)
• time_in_seconds_since_volume_start(time)
• Observation altitude(Altitude)
• Relative humidity measured near Blackbodies. Use with air temperature near BBs
  only.(atmosphericRelativeHumidity)
• Wave number in reciprocal centimeters(wnum2)
• Time at center of AERI sky observation period(timeHHMMSS)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Time offset from base_time(time_offset)
• wavenumbers for mean radiance spectra(wnum)
• North Latitude(lat)
• Boolean with negative error conditions: 1:Open 0:Closed -1:Fault -2:Outside
  Valid Range -3:Neither Open Nor Closed(hatchOpen)
• -180.0 - +180.0(alt)
• Calibrated scene type identification(calibratedSceneID)
• Time in decimal format at center of AERI sky observation period(Time_UTC_hours)
• Scene mirror view angle in non-negative degrees, measured clockwise from nadir
  looking into interferometer window(sceneMirrorAngle)
• AERI instrument unit serial number(AERIunitNumber)
• Julian Day including day and fraction of day(JulianDay)
• Observation latitude(Latitude)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Version number of Operational Software(systemReleaseNumber)

• Constant Pressure Level (Wisc original pres_level)(CPL)
• Temperature used for calculation(temperature)
• time_in_seconds_since_volume_start(time)
• Time offset from base_time(time_offset)
• CPL height array for the profile(CPL_height)
• CPL retrieval of dewpoint temperature(CPL_dewpointTemp)
• Auxilliary flags for THIS retrieval(auxDataFlagsNow)
• Total precipitable water vapor, from Microwave Radiometer(totalPrecipitalWater)
• base time in epoch(base_time)
• Retrieval rejection flag(retrievalRejectionFlag)
• Auxiliary inputs used today(auxDataFlagsToday)
• lon(lon)
• CPL retrieval of water vapor mixing ratio(CPL_waterVaporMixingRatio)
• Profile source flag(profile_source_flag)
• Cloud base height used during retrieval(cloudBaseHeight)
• Interpolated dewpoint temperature(dewpointTemperature)
• Height(height)
• Interpolated water vapor mixing ratio(waterVaporMixingRatio)
• CPL retrieval of atmospheric Pressure(CPL_pressure)
• Derived pressure(pressure)
• CPL retrieval of ambient temperature(CPL_ambientTemp)
• North Latitude(lat)
• -180.0 - +180.0(alt)

• CPL height array for the profile(CPL_height)
• Interpolated dewpoint temperature(dewpointTemperature)
• base time in epoch(base_time)
• Profile source flag(profile_source_flag)
• Time offset from base_time(time_offset)
• Derived pressure(pressure)
• CPL retrieval of atmospheric Pressure(CPL_pressure)
• Interpolated water vapor mixing ratio(waterVaporMixingRatio)
• Auxiliary inputs used today(auxDataFlagsToday)
• Total precipitable water vapor, from Microwave Radiometer(totalPrecipitalWater)
• CPL retrieval of ambient temperature(CPL_ambientTemp)
• Retrieval rejection flag(retrievalRejectionFlag)
• North Latitude(lat)
• -180.0 - +180.0(alt)
• Auxilliary flags for THIS retrieval(auxDataFlagsNow)
• Constant Pressure Level (Wisc original pres_level)(CPL)
• time_in_seconds_since_volume_start(time)
• CPL retrieval of dewpoint temperature(CPL_dewpointTemp)
• Height(height)
• CPL retrieval of water vapor mixing ratio(CPL_waterVaporMixingRatio)
• Cloud base height used during retrieval(cloudBaseHeight)
• lon(lon)
• Temperature used for calculation(temperature)

• Longwave HBB noise-equivalent radiance(LW_HBB_NEN)
• Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
• Version number of Operational Software(systemReleaseNumber)
• Front end fan air temperature difference(frontEndFanAirTempDiff)
• AERI instrument unit serial number(AERIunitNumber)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Logical flag indicating whether longwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using LWskyNEN and
  LWskyNENlimit.(LWskyNENacceptable)
• Logical flag indicating that a data record is missing (true/false)(missingDataFlag)
• Relative humidity measured near Blackbodies. Use with air temperature near BBs
  only.(atmosphericRelativeHumidity)
• Rain sensor analog output(rainSensorIntensity)
• Character string containing instrument name(instrumentUnitNumber)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Characteristic value representing overall longwave channel responsivity(LWresponsivity)
• Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
• Radiance standard deviation during sky view averaged over (2295_2300 cm^-1)(skyViewStdDevRadiance2295_2300)
• Observation date(dateYYMMDD)
• AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENestimateNo1Ch1)
• Time offset from base_time(time_offset)
• AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENestimateNo1Ch2)
• Logical flag indicating whether shortwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using SWskyNEN and
  SWskyNENlimit.(SWskyNENacceptable)
• Observation longitude(Longitude)
• 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)
• -180.0 - +180.0(alt)
• North Latitude(lat)
• AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectralAveragesCh2)
• AERI LW responsivity spectral averages (ch1)(ResponsivitySpectralAveragesCh1)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Calibrated scene type identification(calibratedSceneID)
• Time at center of AERI sky observation period(timeHHMMSS)
• Julian Day including day and fraction of day(JulianDay)
• AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
• AERI SW scene radiance spectral averages (ch2)(SkyRadianceSpectralAveragesCh2)
• time_in_seconds_since_volume_start(time)
• Radiance standard deviation during sky view averaged over (985_990 cm^-1)(skyViewStdDevRadiance985_990)
• Observation altitude(Altitude)
• Longwave radiance average (700_705 cm^-1) elevated air(elevatedLayerRadiance700_705)
• AERI LW scene brightness temp spectral averages (ch1)(SkyBrightnessTempSpectralAveragesCh1)
• AERI SW scene brightness temp spectral averages (ch2)(SkyBrightnessTempSpectralAveragesCh2)
• Difference between actual and ideal motor encoder values for current view
  indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
• The noise equivalent radiance observed in the shortwave channel during a sky
  view at 2500 cm^-1(SWskyNEN)
• Shortwave HBB Noise-equivalent Radiance(SW_HBB_NEN)
• Logical flag indicating whether HBB temperature is stable (true) or not stable
  (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
• Shortwave radiance average (2295_2300 cm^-1) Surface Air(surfaceLayerRadiance2295_2300)
• Shortwave radiance average (2282_2287 cm^-1) elevated air(elevatedLayerRadiance2282_2287)
• Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
• Logical flag indicating whether any data is available at current time
  (true/false)(dataAvailable)
• Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
• AERI LW Scene Variability Spectral Averages (Ch1)(SkyUniformityCh1)
• AERI SW Scene Variability Spectral Averages (Ch2)(SkyUniformityCh2)
• Longwave window brightness temperature from radiance average (985_990 cm^-1)(longwaveWindowAirTemp985_990)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Averaged wave number for SW HBB 2min NESR estimate number 2 (ch2)(wnumsum10)
• Longwave elevated air brightness temperature from radiance average (700_705
  cm-1)(elevatedLayerAirTemp700_705)
• Boolean with negative error conditions: 1:Open 0:Closed -1:Fault -2:Outside
  Valid Range -3:Neither Open Nor Closed(hatchOpen)
• AERI instrument data channel number(channelNumber)
• Maximum temperature difference between ABB thermistors(ABBmaxTempDiff)
• Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
• 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)
• base time in epoch(base_time)
• lon(lon)
• 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)
• Maximum temperature difference between HBB thermistors(HBBmaxTempDiff)
• 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)
• Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
  centered on the scene view(HBBtempDrift)
• Observation latitude(Latitude)
• Averaged Wave number in inverse centimeters(wnumsum3)
• Time in decimal format at center of AERI sky observation period(Time_UTC_hours)
• Averaged wave number for SW responsivity spectral averages(wnumsum2)
• Duration of scene view(sceneViewDuration)
• Averaged wave number for LW responsivity spectral averages(wnumsum1)
• Sun sensor intensity(sunSensorIntensity)
• 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)
• Longwave window radiance average (985_990 cm^-1)(longwaveWindowRadiance985_990)
• 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)
• Scene mirror view angle in non-negative degrees, measured clockwise from nadir
  looking into interferometer window(sceneMirrorAngle)

• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Scene mirror view angle in non-negative degrees, measured clockwise from nadir
  looking into interferometer window(sceneMirrorAngle)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Wave number in reciprocal centimeters(wnum2)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• North Latitude(lat)
• Time offset from base_time(time_offset)
• wavenumbers for mean radiance spectra(wnum)
• -180.0 - +180.0(alt)
• Observation longitude(Longitude)
• Mean of radiance spectra ensemble(mean_rad)
• Difference between the sky view\'s radiance variance and the hot black body
  view\'s variance(standard_dev_mean_rad)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Julian Day including day and fraction of day(JulianDay)
• Time at center of AERI sky observation period(timeHHMMSS)
• AERI instrument unit serial number(AERIunitNumber)
• time_in_seconds_since_volume_start(time)
• Calibrated scene type identification(calibratedSceneID)
• Time in decimal format at center of AERI sky observation period(Time_UTC_hours)
• Logical flag indicating that a data record is missing (true/false)(missingDataFlag)
• AERI instrument data channel number(channelNumber)
• Relative humidity measured near Blackbodies. Use with air temperature near BBs
  only.(atmosphericRelativeHumidity)
• Version number of Operational Software(systemReleaseNumber)
• Boolean with negative error conditions: 1:Open 0:Closed -1:Fault -2:Outside
  Valid Range -3:Neither Open Nor Closed(hatchOpen)
• Character string containing instrument name(instrumentUnitNumber)
• Observation latitude(Latitude)
• lon(lon)
• Duration of scene view(sceneViewDuration)
• Observation date(dateYYMMDD)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Observation altitude(Altitude)
• base time in epoch(base_time)

• North Latitude(lat)
• time_in_seconds_since_volume_start(time)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Version number of Operational Software(systemReleaseNumber)
• Duration of scene view(sceneViewDuration)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Observation date(dateYYMMDD)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• -180.0 - +180.0(alt)
• Character string containing instrument name(instrumentUnitNumber)
• Difference between the sky view\'s radiance variance and the hot black body
  view\'s variance(standard_dev_mean_rad)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Julian Day including day and fraction of day(JulianDay)
• AERI instrument data channel number(channelNumber)
• Boolean with negative error conditions: 1:Open 0:Closed -1:Fault -2:Outside
  Valid Range -3:Neither Open Nor Closed(hatchOpen)
• Mean of radiance spectra ensemble(mean_rad)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• Logical flag indicating that a data record is missing (true/false)(missingDataFlag)
• wavenumbers for mean radiance spectra(wnum)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Observation longitude(Longitude)
• Wave number in reciprocal centimeters(wnum2)
• lon(lon)
• Observation altitude(Altitude)
• Observation latitude(Latitude)
• Time at center of AERI sky observation period(timeHHMMSS)
• Time in decimal format at center of AERI sky observation period(Time_UTC_hours)
• Calibrated scene type identification(calibratedSceneID)
• AERI instrument unit serial number(AERIunitNumber)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Relative humidity measured near Blackbodies. Use with air temperature near BBs
  only.(atmosphericRelativeHumidity)
• Time offset from base_time(time_offset)
• Scene mirror view angle in non-negative degrees, measured clockwise from nadir
  looking into interferometer window(sceneMirrorAngle)
• base time in epoch(base_time)

• 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)
• Blackbody controller unit 2 power supply temperature(BBcontroller2temp)
• Front End Fan Airflow Heated Temperature(frontEndFanAirHeatedTemp)
• Hot blackbody temperature - apex(HBBapexTemp)
• Ambient blackbody temperature(ABBbottomTemp)
• Weight factor for bottom used in calculating hot blackbody temperature average(HBBbottomTempWeight)
• Number of complete (forward+backward) interferogram scans in sample average(coadditionsCount)
• Hot blackbody temperature - rim bottom(HBBbottomTemp)
• Observation altitude(Altitude)
• Weight factor for top used in calculating ambient blackbody temperature average(ABBtopTempWeight)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Logical flag indicating whether any data is available at current time
  (true/false)(dataAvailable)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Instrument scene mirror position identifier(sceneMirrorPosition)
• Corrective offset for final ambient blackbody average temperature(ABBtempOffset)
• Decimal representation of percentage weighting of ambient blackbody apex
  temperature(ABBapexTempWeight)
• time_in_seconds_since_volume_start(time)
• Shortwave elevated air brightness temperature from radiance average (2282_2287
  cm-1)(elevatedLayerAirTemp2282_2287)
• Calibrated scene type identification(calibratedSceneID)
• Corrective offset for final hot blackbody average temperature(HBBtempOffset)
• Hot blackbody temperature - rim top(HBBtopTemp)
• Blackbody controller unit 1 power supply temperature(BBcontroller1temp)
• Longwave window radiance average (985_990 cm^-1)(longwaveWindowRadiance985_990)
• Scene mirror position encoder value(sceneMirPosEncoder)
• lon(lon)
• Detector Temperature(detectorTemp)
• base time in epoch(base_time)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
• Interferometer Window Temperature(interferometerWindowTemp)
• Maximum temperature difference between HBB thermistors(HBBmaxTempDiff)
• Resistive temperature of 2500 ohm fixed resistor - banana plug mounted(fixed2500ohmResistor)
• Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
• Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
• Boolean with negative error conditions: 1:Open 0:Closed -1:Fault -2:Outside
  Valid Range -3:Neither Open Nor Closed(hatchOpen)
• ABB View Radiance Std Deviation (2282_2287 cm^-1)(ABBviewStdDevRadiance2282_2287)
• FFOV half angle(FFOVhalfAngle)
• Resistive temperature of 12 Kohm fixed resistor located in SCE-P3 shell(fixed12KohmResistor)
• Observation latitude(Latitude)
• Front End Fan Airflow Unheated Temperature(frontEndFanAirUnheatedTemp)
• Imaginary radiance during sky view averaged over (2510_2515 cm-1)(skyViewImaginaryRadiance2510_2515)
• Signal conditioning electronics inside air temperature(SCEtemp)
• Scene mirror motor driver heat sink temperature(motorDriverTemp)
• ABB View Radiance Std Deviation (675_680 cm^-1)(ABBviewStdDevRadiance675_680)
• Scene mirror position count; number of viewers in a sequence(sceneMirPosCount)
• Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
• Ambient air temperature near the interferometer(airNearInterferometerTemp)
• HBB View Radiance Std Deviation (2295_2300 cm^-1)(HBBviewStdDevRadiance2295_2300)
• Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
• Sun sensor intensity(sunSensorIntensity)
• Longwave elevated air brightness temperature from radiance average (700_705
  cm-1)(elevatedLayerAirTemp700_705)
• Shortwave HBB Noise-equivalent Radiance(SW_HBB_NEN)
• Shortwave radiance average (2295_2300 cm^-1) Surface Air(surfaceLayerRadiance2295_2300)
• Radiance standard deviation during sky view averaged over (985_990 cm^-1)(skyViewStdDevRadiance985_990)
• Radiance standard deviation during sky view averaged over (2510_2515 cm^-1)(skyViewStdDevRadiance2510_2515)
• Scene mirror motor case temperature(mirrorMotorTemp)
• Expanded Spectral Buffer Size(expandedInterferogramSize)
• HBB view radiance standard deviation (985_990 cm^-1)(HBBviewStdDevRadiance985_990)
• Time in decimal format at center of AERI sky observation period(Time_UTC_hours)
• Rain sensor analog output(rainSensorIntensity)
• Weight factor for top used in calculating hot blackbody temperature average(HBBtopTempWeight)
• Motor step value given to motor controller to achieve proper mirror positioning(sceneMirrorMotorStep)
• Logical flag indicating whether HBB temperature is stable (true) or not stable
  (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
• Blackbody cavity geometry factor(BBcavityFactor)
• ABB view radiance standard deviation (2510_2515 cm^-1)(ABBviewStdDevRadiance2510_2515)
• Longwave window brightness temperature from radiance average (985_990 cm^-1)(longwaveWindowAirTemp985_990)
• Shortwave window radiance average (2510_2515 cm^-1)(shortwaveWindowRadiance2510_2515)
• Scene mirror view angle in non-negative degrees, measured clockwise from nadir
  looking into interferometer window(sceneMirrorAngle)
• Original Laser Wavenumber(originalLaserWavenumber)
• Sky view imaginary radiance (2282_2287 cm^-1)(skyViewImaginaryRadiance2282_2287)
• Decimal representation of percentage weighting of hot blackbody apex temperature(HBBapexTempWeight)
• AERI instrument unit serial number(AERIunitNumber)
• Stirling cooler compressor temperature measured at compressor heatsink(coolerCompressorTemp)
• Interferometer Enclosure Relative Humidity(interferometerEnclosureRelativeHumidity)
• Version number of Operational Software(systemReleaseNumber)
• Imaginary radiance during sky view averaged over (985_990 cm-1)(skyViewImaginaryRadiance985_990)
• Observation longitude(Longitude)
• Size of buffer holding initial spectrum(originalInterferogramSize)
• Radiance standard deviation during ambient blackbody view averaged over (985_990
  cm-1)(ABBviewStdDevRadiance985_990)
• HBB view radiance standard deviation (700_705 cm^-1)(HBBviewStdDevRadiance700_705)
• Longwave radiance average (700_705 cm^-1) elevated air(elevatedLayerRadiance700_705)
• Logical flag indicating that a data record is missing (true/false)(missingDataFlag)
• Two minute noise estimate factor(twoMinuteNoiseEstimateFactor)
• Scene mirror temperature as measured at the center of the back of the mirror(sceneMirrorTemp)
• Ambient blackbody temperature - rim top(ABBtopTemp)
• Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
• Time at center of AERI sky observation period(timeHHMMSS)
• Logical flag indicating whether shortwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using SWskyNEN and
  SWskyNENlimit.(SWskyNENacceptable)
• The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
  centered on the scene view(HBBtempDrift)
• Duration of scene view(sceneViewDuration)
• HBB view radiance standard deviation (2510_2515 cm^-1)(HBBviewStdDevRadiance2510_2515)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• Radiance standard deviation during sky view averaged over (2295_2300 cm^-1)(skyViewStdDevRadiance2295_2300)
• Ingest computer temperature(computerTemp)
• Stirling cycle cooler expander temperature(coolerExpanderTemp)
• Relative humidity measured near Blackbodies. Use with air temperature near BBs
  only.(atmosphericRelativeHumidity)
• The noise equivalent radiance observed in the longwave channel during a sky view
  at 1000 cm-1(LWskyNEN)
• Julian Day including day and fraction of day(JulianDay)
• Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
• Optics Compartment Relative Humidity(opticsCompartmentRelativeHumidity)
• Ambient blackbody temperature - apex(ABBapexTemp)
• Sky View Imaginary Radiance (675_680 cm^-1)(skyViewImaginaryRadiance675_680)
• HBB view radiance standard deviation (675_680 cm^-1)(HBBviewStdDevRadiance675_680)
• ABB View Radiance Std Deviation (2295_2300 cm^-1)(ABBviewStdDevRadiance2295_2300)
• Resistive temperature of 97 Kohm fixed resistor located in SCE-P4 shell(fixed97KohmResistor)
• BB Support Structure Temperature(BBsupportStructureTemp)
• ABB view radiance standard deviation (700_705 cm^-1)(ABBviewStdDevRadiance700_705)
• Characteristic value representing overall longwave channel responsivity(LWresponsivity)
• Limit in Hot-blackbody Temperature Drift(HBBtempDriftLimit)
• AERI instrument data channel number(channelNumber)
• -180.0 - +180.0(alt)
• North Latitude(lat)
• Longwave scene NEN limit(LWskyNENlimit)
• Character string containing instrument name(instrumentUnitNumber)
• Maximum temperature difference between ABB thermistors(ABBmaxTempDiff)
• AERI interferometer temperature at second port(interferometerSecondPortTemp)
• Number of terms in FFOV corrections(numberOfTerms)
• Time offset from base_time(time_offset)
• Shortwave surface air brightness temperature from radiance average (2295_2300
  cm-1)(surfaceLayerAirTemp2295_2300)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Shortwave radiance average (2282_2287 cm^-1) elevated air(elevatedLayerRadiance2282_2287)
• Sky View Imaginary Radiance (700_705 cm^-1)(skyViewImaginaryRadiance700_705)
• Front end fan air temperature difference(frontEndFanAirTempDiff)
• Longwave HBB noise-equivalent radiance(LW_HBB_NEN)
• Ambient air temperature near blackbodies(airNearBBsTemp)
• Shortwave scene NEN limit(SWskyNENlimit)
• Stirling cycle cooler current(coolerCurrent)
• Weight factor for bottom used in calculating ambient blackbody temperature
  average(ABBbottomTempWeight)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Stirling cooler power supply temperature measured at power supply frame(coolerPowerSupplyTemp)
• 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)
• Observation date(dateYYMMDD)
• Electronics rack ambient temperature(rackAmbientTemp)
• Spare temperature sensor (location TBD)(spareTemp)
• Laser wavenumber used in definition of output wavenumber scale(outputLaserWavenumber)
• Difference between actual and ideal motor encoder values for current view
  indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
• Logical flag indicating whether longwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using LWskyNEN and
  LWskyNENlimit.(LWskyNENacceptable)