This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, August 9, 2024 (the end of week 1162 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 photometric calibration test ran on 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)

Aqua yaw slews:
  At the request of the MODIS team, the Aqua spacecraft performed a total of 24 yaw slews: six each on July 31, August 1, August 7, and August 8.
  The AIRS instrument remained in "Operate" (nominal science) mode throughout the yaw campaign, and AMSU-A1 remained in Science mode.
  Here is a summary of yaw times and angles:
   213/11:45:53 Slew out start.  Yaw angle -2.5394 degrees
   213/12:08:41  Slew back end

   213/13:23:56 Slew out start.  Yaw angle 3.4528 degrees
   213/13:48:02 Slew back end

   213/14:59:43 Slew out start.  Yaw angle 9.4445 degrees
   213/15:29:41 Slew back end

   213/16:36:22 Slew out start.  Yaw angle 15.4366 degrees
   213/17:10:28 Slew back end

   213/18:13:23 Slew out start.  Yaw angle 21.4277 degrees
   213/18:50:53 Slew back end

   213/19:50:38 Slew out start.  Yaw angle 27.4182 degrees
   213/20:31:04 Slew back end

   214/10:45:59 Slew out start.  Yaw angle -5.6540 degrees
   214/11:12:35  Slew back end

   214/12:29:03 Slew out start.  Yaw angle 0.3385 degrees
   214/12:46:57 Slew back end

   214/14:03:04 Slew out start.  Yaw angle 6.3301 degrees
   214/14:30:20 Slew back end

   214/15:39:23 Slew out start.  Yaw angle 12.3217 degrees
   214/16:11:27 Slew back end

   214/17:16:14 Slew out start.  Yaw angle 18.3133 degrees
   214/17:52:02 Slew back end

   214/18:53:23 Slew out start.  Yaw angle 24.3038 degrees
   214/19:32:19 Slew back end

   220/11:33:57 Slew out start.  Yaw angle -3.4452 degrees
   220/11:58:01  Slew back end

   220/13:13:18 Slew out start.  Yaw angle 2.5455 degrees
   220/13:36:06 Slew back end

   220/14:48:48 Slew out start.  Yaw angle 8.5354 degrees
   220/15:18:02 Slew back end

   220/16:25:21 Slew out start.  Yaw angle 14.5259 degrees
   220/16:58:53 Slew back end

   220/18:02:20 Slew out start.  Yaw angle 20.5155 degrees
   220/18:39:20 Slew back end

   220/19:39:33 Slew out start.  Yaw angle 26.5045 degrees
   220/20:19:33 Slew back end

   221/12:12:54 Slew out start.  Yaw angle -6.5922 degrees
   221/12:40:26  Slew back end

   221/13:55:56 Slew out start.  Yaw angle -0.6022 degrees
   221/14:14:48 Slew back end

   221/15:30:55 Slew out start.  Yaw angle 5.3877 degrees
   221/15:57:15 Slew back end

   221/17:07:05 Slew out start.  Yaw angle 11.3777 degrees
   221/17:38:29 Slew back end

   221/18:43:52 Slew out start.  Yaw angle 17.3667 degrees
   221/19:19:08 Slew back end

   221/20:20:59 Slew out start.  Yaw angle 23.3552 degrees
   221/20:59:27 Slew back end

Upcoming events:

1) An AIRS guard test is scheduled for Thursday, August 15.  Here is the timeline (UT):
   228/21:29:00 AIRS Guard Test begins (AIRS in CHECKOUT mode) 
   228/21:56:00 AIRS back in OPERATE mode

2) 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