This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, March 15, 2024 (the end of week 1141 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:

   There were no instrument activities this past week.


Upcoming events:

1) An AIRS guard test is scheduled for Monday, March 18.  Here is the timeline (UT):
   078/22:35:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
   078/23:02:00 AIRS back in OPERATE mode

2) MODIS Lunar Calibration #230 is scheduled for Wednesday, March 20.  Here is the timeline (UT):
   080/15:31:00  AIRS put into READY mode prior to Lunar Cal
   080/15:54:00  AIRS back in OPERATE mode

3) An AIRS OBC Float test is planned for April, although a date has not been set.
The test will last for 2 - 3 days.  A special gain table will be loaded to Aqua for use in the test.

4) Separately from the OBC Float gain table, 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/.


William Mathews  - AIRS Instrument Operations
NASA / Jet Propulsion Laboratory