Tohban Report 2014-09-16

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Tohban Reports
Start Date: 10 Sep 2014
End Date: 16 Sep 2014
Tohban: Nicole Duncan
Tohban email: nicoleduncan@ssl.berkeley.edu
Next Tohban: Mitsuo Oka
List all reports



Solar Activity

Solar activity dropped off this week following an X-class event on Sept 9. Solar activity is moderate, with a handful of C class events in the past 24 hours. Most of these events, and the most complicated magnetic spot on disk, is on the western limb. Activity should remain low as there are no complex spots set to rotate on disk in the next few days.

How many GOES flares occurred? 

 Flares above B, C, M, X class were    2     29     3     1

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

 Flares above B, C, M, X class were      1     20     3     1

And how many had EXCELLENT coverage? 

 Flares above B, C, M, X class were      0    9    1     0

There were RHESSI flares/GOES flares



Memory Management

RHESSI continues in ACTIVE/VIGOROUS mode this week, and did not have a mode change for the coordinated NuStar observations. We turned full nighttime events back on after the ops meeting on wednesday. SSR is emptying at the end of the pass set with a few extra, and reached a maximum of 20%.

Nighttime events turned back on: 2014-255-20:16:40 UTC

Spacecraft Status

Spacecraft systems are nominal. Cold plate temps are 125.4 and 124.2, up slightly from last week, as expected from shadow length duration. Temperatures should start dropping again as of next tuesday/wednesday. Attenuator motion was nominal. Cryocooler is nominal.


Data Gaps

GAPS IN APP_ID = 1 (VC1-SOH) WITH PACKET RATE LT 30

GAP START TIME GAP END TIME GAP (SEC)

2014-09-13T16:05:00.000 -- 2014-09-13T16:20:00.000 900.00000

2014-09-12T00:30:00.000 -- 2014-09-12T00:40:00.000 600.00000

2014-09-12T00:45:00.000 -- 2014-09-12T00:55:00.000 600.00000

2014-09-12T01:40:00.000 -- 2014-09-12T01:50:00.000 600.00000

2014-09-12T06:40:00.000 -- 2014-09-12T06:50:00.000 600.00000

2014-09-12T07:10:00.000 -- 2014-09-12T07:15:00.000 300.00000

2014-09-12T08:25:00.000 -- 2014-09-12T08:30:00.000 300.00000


2014-09-11T10:25:00.000 -- 2014-09-11T10:35:00.000 600.00000

2014-09-11T21:50:00.000 -- 2014-09-11T21:55:00.000 300.00000

2014-09-11T22:10:00.000 -- 2014-09-11T22:15:00.000 300.00000


GAPS IN APP_ID = 154 (VC1-PMTRAS) WITH PACKET RATE LT 4

GAP START TIME GAP END TIME GAP (SEC)

2014-09-13T16:05:00.000 -- 2014-09-13T16:20:00.000 900.00000

2014-09-12T07:30:00.000 -- 2014-09-12T07:35:00.000 300.00000


2014-09-11T12:10:00.000 -- 2014-09-11T12:25:00.000 900.00000

No Monitor rates gaps for this time period

Detector issues

Detector 9: Some isolated spikes in the rear segment. These were not frequent or extreme enough to warrant a voltage change, although the next Tohban should keep an eye on it.

Detector 2: Raised the Front Fast threshold due to the light leak. 14-260-16:36:36 /IDPUTABLE2 OFFSET=FRONTFASTDAC 14-260-16:36:51 /IDPULOAD VALUE=0x50


Spacecraft Operations

Decimation remained in ACTIVE/VIGOROUS this week. We will change into NORMAL/VIGOROUS after the ops meeting.

Other notes

Decimation Active/Vigorous
HLAT Decimation Rear decimation weight 6, no front decimation
Night time data (fronts) full nighttime events
Night time data (rears) full nighttime events
Attenuator operation Active
Detector problems? Noise in 9, light leak in 2
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