Tohban Report 2013-08-21

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Tohban Reports
Start Date: 14 August 2013
End Date: 21 August 2013
Tohban: Hazel Bain
Tohban email:
Next Tohban: Mitsuo Oka
List all reports


Solar Activity

Solar activity was relatively low this week with only 2 low M class flares. There are currently 10 active regions on the disk, a few of which will rotate over the limb within the next 24 hours, including AR 11818 which has produced the M and C class flares over the last few days. STEREO B shows several small active regions on the farside of the Sun.

How many GOES flares occurred?

 Flares above B, C, M, X class were     12    22     2     0

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

 Flares above B, C, M, X class were      2     8     0     0

And how many had EXCELLENT coverage?

 Flares above B, C, M, X class were      1     2     0     0

There were RHESSI flares/GOES flares 91 / 36 over the time range 14-Aug-13 21-Aug-13

Memory Management

The SSR is emptying by the end of the daily pass set.

Spacecraft Status

Cold plate 1 and 2 are currently at 115.1 K and 113.5 K.

On DOY 227 16:09 the spacecraft spin rate changed to idle. The problem was rectified quickly before the Sun had drifted out of the spacecraft FOV.

Data Gaps

A number of large data gaps are visible in the browser plots starting on the 15-aug-2013 due to a break in the processing of VC1 and VC3 data packets from Wallops. Once the process is fixed the data gaps should be filled in.

Detector issues

Other notes

Decimation Normal/Vigorous
HLAT Decimation Rear decimation weight 6, no front decimation
Night time data (fronts) Enabled, during entire eclipse
Night time data (rears) Enabled, during entire eclipse
Require extra passes? No?
Requirement for moving pointer? No
Attenuator operation Normal
Detector problems? Increased noise in Detector 7 continues.
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