Tohban Report 2015-01-14

From RHESSI Wiki

Revision as of 18:29, 14 January 2015 by Lglesener (Talk | contribs)
Jump to: navigation, search


Tohban Reports
Start Date: 7 Jan 2015
End Date: 14 Jan 2015
Tohban: Lindsay Glesener
Tohban email: glesener@ssl.berkeley.edu
Next Tohban: Nicole Duncan
List all reports



Contents

Solar Activity

Overall, this week was a bit quieter than last. There are 7 active regions on the disk, with one of them (AR 12257, at the west limb) producing many C and M class flares. This is a fairly recent burst of activity that started early Tuesday; before that time solar activity was quiet-to-moderate. There is a Major Flare Watch in place. This AR will rotate off any second, and there isn't a lot else active, so solar activity is expected to drop soon. There should be a day or two of good opportunity for occulted flares.

How many GOES flares occurred?

 Flares above B, C, M, X class were      0    39     2     0

And how many of these are listed in the RHESSI flare list?

 Flares above B, C, M, X class were      0    27     1     0

And how many had EXCELLENT coverage?

 Flares above B, C, M, X class were      0     0     0     0

There were RHESSI flares/GOES flares 294 / 41 over the time range 07-Jan-15 14-Jan-15

Memory Management

The SSR fill slowly crept up over the weekend, and by Tuesday was reaching a max of almost 50%. That coincided with the Major Flare Watch call, so several actions were taken at once to reduce the fill: the decimation state was changed, nighttime events were turned off, and D7 slow threshold was raised to its previous value. After those actions, the SSR fill was brought down to 28% in one pass set, so these actions appear to have been successful in quickly alleviating the memory stress. These actions could now be reversed one by one, although it may be best to wait until the AR is fully rotated off.

15-013-19:27:21 /IDPUTABLE7 OFFSET=FRONTSLOWDAC 15-013-19:27:36 /IDPULOAD VALUE=0x10 ; increased from 0x0C 15-013-19:28:17 start idpu_dec_active_vigorous

Spacecraft Status

Data Gaps

Data from yesterday (Jan 13) is being listed as a gap but just probably isn't down yet.

One gap on the 7th. 2015-01-07T07:00:00.000 -- 2015-01-07T07:55:00.000 3300.0000 sec

Temperatures

Discussion of Brian's plots...

Detector issues

Detectors 1,3,6, 8, and 9 are stably segmented. Detectors 5 and 7 are segmented, but not stable yet. Detectors 2 and 4 are still unsegmented.

We still see light leak on detectors 2, 5 and 9.

On January 13 at 19:27 UTC we raised the front slow threshold on D7 to 0x10 (was 0x0C).

Other notes

Spacecraft Management

Decimation Active/Vigorous
Night time data (fronts) Off
Night time data (rears) Off
Require extra passes? No
Requirement for moving pointer? No
Attenuator operation Normal
Personal tools
Namespaces
Variants
Actions
Navigation
Toolbox