Tohban Report 2015-03-11

Tohban Reports
Start Date:	4 Mar 2015
End Date:	11 Mar 2015
Tohban:	Lindsay Glesener
Tohban email:	glesener@ssl.berkeley.edu
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Solar Activity

FLARES!!! Awesome, occulted flares. And then loads of unocculted ones!

How many GOES flares occurred?

 Flares above B, C, M, X class were      8    45     8     0

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

 Flares above B, C, M, X class were      6    30     7     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 322 / 61 over the time range 04-Mar-15 11-Mar-15

Memory Management

Decimation was changed from normal_vigorous to active vigorous at 065-19:17:19 UTC (March 6).

We turned off nighttime events starting 065-19:49:21 UTC (March 6).

Both of these actions were in response to a productive AR coming over the east limb in the south. This AR eventually produced a major flare watch (still ongoing as of March 11).

Spacecraft Status

We spun up from 14.5 to 14.9 RPM between 2015-064-19:39 and 064-21:03 UTC (March 5).

Data Gaps

There were a number of gaps in SOH data:

 GAPS IN APP_ID = 1 (VC1-SOH) WITH PACKET RATE LT 30
 N_GAPS          13
 GAP START TIME              GAP END TIME                   GAP (SEC)
 2015-03-06T15:00:00.000 -- 2015-03-06T15:05:00.000       300.00000
 2015-03-06T15:20:00.000 -- 2015-03-06T15:25:00.000       300.00000
 2015-03-06T17:20:00.000 -- 2015-03-06T17:40:00.000       1200.0000
 2015-03-06T18:05:00.000 -- 2015-03-06T18:10:00.000       300.00000
 2015-03-06T18:30:00.000 -- 2015-03-06T18:35:00.000       300.00000
 2015-03-06T18:40:00.000 -- 2015-03-06T18:45:00.000       300.00000
 2015-03-06T18:50:00.000 -- 2015-03-06T18:55:00.000       300.00000
 2015-03-06T20:00:00.000 -- 2015-03-06T20:05:00.000       300.00000
 2015-03-06T20:40:00.000 -- 2015-03-06T20:45:00.000       300.00000
 2015-03-06T22:50:00.000 -- 2015-03-06T22:55:00.000       300.00000
 2015-03-06T23:10:00.000 -- 2015-03-06T23:15:00.000       300.00000
 2015-03-06T23:20:00.000 -- 2015-03-06T23:25:00.000       300.00000
 2015-03-06T23:45:00.000 -- 2015-03-07T00:00:00.000       900.00000

 GAP START TIME              GAP END TIME                   GAP (SEC)
 2015-03-07T00:25:00.000 -- 2015-03-07T00:30:00.000       300.00000

Detector issues

On March 5 we changed the Rear Fast threshold for detector nine to free up livetime eaten up by fast rates:

• 15-064-19:39:50 /IDPUTABLE9 OFFSET=REARFASTDAC
• 15-064-19:40:12 /IDPLOAD VALUE=0x80  ; was 0x70

On March 9 the D6 front fast threshold was changed due to low livetime:

• 15-068-01:26:56 /IDPUTABLE6 OFFSET=FRONTFASTDAC
• 15-068-01:27:07 /IDPLOAD VALUE=0x50

Spacecraft Management

Decimation	Active/Vigorous
Night time data (fronts)	plus/minus 4 minutes only
Night time data (rears)	plus/minus 4 minutes only
Require extra passes?	No
Requirement for moving pointer?	No
Attenuator operation	Normal