Tohban Report 2012-12-26
| Tohban Reports | |
|---|---|
| Start Date: | 19 Dec 2012 |
| End Date: | 26 Dec 2012 |
| Tohban: | Mitsuo Oka |
| Tohban email: | moka@ssl.berkeley.edu |
| Next Tohban: | Pascal Saint Hilaire (shilaire@ssl.berkeley.edu) |
| List all reports | |
Solar Activity
The Sun remained quiet this week, but solar activity is now picking back up as one of 4 currently active regions on the disk (AR 11635) has produced several C flares during the last two days. STEREO B shows one further active region which will rotate onto the disk in the next few days.
How many GOES flares occurred?
Flares above B, C, M, X class were 27 13 0 0
And how many of these are listed in the RHESSI flare list?
Flares above B, C, M, X class were 20 8 0 0
And how many had EXCELLENT coverage?
Flares above B, C, M, X class were 11 5 0 0
There were RHESSI flares/GOES flares 193 / 40 over the time range 18-Dec-12 25-Dec-12
Memory Management
The SSR fill level was relatively high earlier this week because of replaying data in response to the ground station problems from the previous week.
Spacecraft Status
The CPC temperature was high but trending normally with day length.
Data Gaps
There were several data gaps caused by the Wallops station problems but all of the monitor rate data have been replayed.
Detector issues
Here is the high voltage changes made this week.
2012-356-20:07:08 /ihvdac detector=8, voltage=127 (2475.5 V) 2012-356-20:08:51 /ihvdac detector=4, voltage=221 (4313.8 V)
Detector 8 seems to have been quiet since this change. It looks like it actually quieted before the HV adjustment, although some of the data from that interval still shows noise. Detector 8 should be turned back on next week by the Ops team at their earliest convenience.
As for Detector 4, we don't see signs of desegmenting in the most recent plots, other than very briefly during the SAA.
| Decimation | active/vigorous |
| HLAT Decimation | |
| Night time data (fronts) | +/- 4 min |
| Night time data (rears) | +/- 4 min |
| Require extra passes? | Yes |
| Requirement for moving pointer? | Some data replayed |
| Attenuator operation | Normal |
| Detector problems? | D4 and D8 |