This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, August 2, 2024 (the end of week 1161 of the Aqua mission).

 
AIRS:  The AIRS instrument remains healthy with all voltages, currents, and temperatures as expected.
AMSU-A1:  AMSU-A1 is healthy except for channels 4, 5, 6, and 7.
AMSU-A2:  AMSU-A2, which provided channels 1 and 2 of the AMSU-A suite, suffered a non-recoverable loss of power on September 24, 2016 and is no longer operational.
HSB:  HSB has been non-operational since February 2003 due to a scanner anomaly.


Instrument activities since previous report:

An AIRS OBC float calibration test finished executing on Saturday, July 27.  Here is the timeline (UT): 

207/17:00	Set AIRS opmode to READY
207/17:00	Load calibration gain table to AIRS
207/17:01	Turn OBC heater off
209/04:20	Rotate scan profile to OBC
209/04:45	Rotate scan profile to nadir
209/05:00	Turn OBC heater on
209/21:00	Load Optimum (nominal) gain table to AIRS
209/21:01	AIRS back in OPERATE mode

Upcoming events:

1) An AIRS photometric calibration test is scheduled for Wednesday, August 7.  Here is the timeline (UT):
   220/21:14:00  Photocal Lamp 3 On (S/C night)
   220/21:22:00  Photocal Lamps Off (S/C night)
   220/22:04:00  Photocal Lamp 3 On (S/C day)
   220/22:12:00  Photocal Lamps Off (S/C day)

2) An AIRS guard test is planned for Thursday, August 16.  This activity has not been scheduled yet.

3) A new Optimum (normal operations) gain & circumvention table will be uploaded.
The upload has not been scheduled yet.


Daily plots of noise levels for each AIRS channel are available on the AIRS webpage at https://airs.jpl.nasa.gov/mission/instrument-operations/.
A link there currently points to where the files are hosted at https://thunder.jpl.nasa.gov/nedt_trends/html/airs_channel_nedt_trends.html.
For each channel there are plots for the whole AIRS mission and for the last 2 months.
Going forward, weekly Ops status updates will be archived at the same webpage above,
and are hosted at https://airsteam.jpl.nasa.gov/report/latest and https://airsteam.jpl.nasa.gov/report/archive/.

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William Mathews  - AIRS Instrument Operations  
NASA / Jet Propulsion Laboratory