Tohban Report 2013-06-05

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Tohban Reports
Start Date: 29 May 2013
End Date: 05 June 2013
Tohban: Nicole Duncan
Tohban email:
Next Tohban: Mitsuo Oka
List all reports


Solar Activity

Moderate solar activity this week with one M class and a few C class flares. AR 1762 has evolved into a D-type/beta-gamma-delta and is most likely to flare. So far its produced a few B class events and a C, and could produce another C and possibly an M before rotating off disk. There are 8 named AR on disk, all clustered at the western limb and due to rotate off in the coming days.

How many GOES flares occurred?

 Flares above B, C, M, X class were     31     8     1     0

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

 Flares above B, C, M, X class were     20     7     1     0

And how many had EXCELLENT coverage?

 Flares above B, C, M, X class were     19     1     1     0

There were RHESSI flares/GOES flares 142 / 40 over the time range 28-May-13 04-Jun-13

Memory Management

We lowered to Normal/Vigorous at day 149, May 29th. Started taking rear data during eclipse Thursday May 30th. The SSR emptied by the end of the daily pass set. Max of 25% in last 7 days.

Spacecraft Status

There was a spin up on Thursdaay May 30th, currently at 14.9.

Cold plate plate 1 is now 115.5 K. Increase of .8 from last week. Trending as normal.

No further action was taken on the accelerometer this week. It hovered between 11.2-14.5 mg.

Data Gaps



GAPS IN APP_ID = 102 (VC3-MONITOR RATES) WITH PACKET RATE LT 30 N_GAPS 1 GAP START TIME GAP END TIME GAP (SEC) 2013-05-29T20:15:00.000 -- 2013-05-29T20:20:00.000 300.00000

Detector issues

Detector 9 still exhibits the dropout/noise this past week. No action taken. The frequency of dropouts decreased over the week, but their severity remained the dame.

Other notes

Spacecraft Management

Decimation Normal/Vigorous
HLAT Decimation Rear decimation weight 6, no front decimation
Night time data (fronts) +/- 4 minutes
Night time data (rears) Enabled (turned on this week)
Require extra passes? No
Requirement for moving pointer? No
Attenuator operation Normal
Detector problems? D9 noise
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