NOAA Office of Satellite and Product Operations

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NOAA 12 HIRS Subsystem Summary

Component Description Status
CHANNEL 1Spectral Channel #1, 14.95 micro metersGreen
CHANNEL 10Spectral Channel #10, 12.55 micro metersGreen
CHANNEL 11Spectral Channel #11, 7.33 micro metersGreen
CHANNEL 12Spectral Channel #12, 6.72 micro metersGreen
CHANNEL 13Spectral Channel #13, 4.57 micro metersGreen
CHANNEL 14Spectral Channel #14, 4.52 micro metersGreen
CHANNEL 15Spectral Channel #15, 4.46 micro metersGreen
CHANNEL 16Spectral Channel #16, 4.40 micro metersGreen
CHANNEL 17Spectral Channel #17, 4.13 micro metersGreen
CHANNEL 18Spectral Channel #18, 4.00 micro metersGreen
CHANNEL 19Spectral Channel #19, 3.76 micro metersGreen
CHANNEL 2Spectral Channel #2, 14.71 micro metersGreen
CHANNEL 20Spectral Channel #20, 0.69 micro metersGreen
CHANNEL 3Spectral Channel #3, 14.49 micro metersGreen
CHANNEL 4Spectral Channel #4, 14.22 micro metersGreen
CHANNEL 5Spectral Channel #5, 13.97 micro metersGreen
CHANNEL 6Spectral Channel #6, 13.64 micro metersGreen
CHANNEL 7Spectral Channel #7, 13.35 micro metersGreen
CHANNEL 8Spectral Channel #8, 11.11 micro metersGreen
CHANNEL 9Spectral Channel #9, 9.71 micro metersGreen
ELECTRONICSInstrument ElectronicsGreen
FILTER WHEELInstrument Filter Wheel MotorRed
SCAN MOTORInstrument Scan MotorGreen


Subsystem History:

Date Time Component Description
08/06/200718:49:00 HIRS Cooler Heater Turn On
08/06/200718:49:00 HIRS Filter Wheel Housing Heater Turn On
05/01/200612:40:00ELECTRONICSTurnoff HIRS Filter Wheel because of observed high temperatures. All other HIRS components remain on.
04/30/200622:45:00 Turnon all HIRS components to serve as resistor and reduce shunt stress.
06/23/200510:46:00ELECTRONICSPower off HIRS to reduce battery voltage drawdown during dark portion of the orbit.
08/30/200411:05:00 Turn on HIRS and MSU to add power load on spacecraft bus and reduce shunt stress.
07/25/200423:18:00 HIRS electronics autonomously powered off by battery undervoltage trip.
09/23/2002FILTER WHEELHIRS Filter wheel ceased
08/21/1997  HIRS no longer being used
05/30/1997FILTER WHEELFilter wheel motor current jumped and wheel out of sync due to lubrication starvation.
01/07/1992 HIRS science data unusable for producing sounding products due to possible couple with AVHRR motor jitter.
05/14/199115:26:00FILTER WHEELOn Orbit
05/14/199115:26:00SCAN MOTOROn Orbit
05/14/199115:26:00ELECTRONICSOn Orbit
05/14/199115:26:00CHANNEL 1On Orbit
05/14/199115:26:00CHANNEL 2On Orbit
05/14/199115:26:00CHANNEL 3On Orbit
05/14/199115:26:00CHANNEL 4On Orbit
05/14/199115:26:00CHANNEL 5On Orbit
05/14/199115:26:00CHANNEL 6On Orbit
05/14/199115:26:00CHANNEL 7On Orbit
05/14/199115:26:00CHANNEL 8On Orbit
05/14/199115:26:00CHANNEL 9On Orbit
05/14/199115:26:00CHANNEL 10On Orbit
05/14/199115:26:00CHANNEL 11On Orbit
05/14/199115:26:00CHANNEL 12On Orbit
05/14/199115:26:00CHANNEL 13On Orbit
05/14/199115:26:00CHANNEL 14On Orbit
05/14/199115:26:00CHANNEL 15On Orbit
05/14/199115:26:00CHANNEL 16On Orbit
05/14/199115:26:00CHANNEL 17On Orbit
05/14/199115:26:00CHANNEL 18On Orbit
05/14/199115:26:00CHANNEL 19On Orbit
05/14/199115:26:00CHANNEL 20On Orbit