Tohban Report 2014-04-16
| Tohban Reports | |
|---|---|
| Start Date: | 9 Apr 2014 |
| End Date: | 16 Apr 2014 |
| Tohban: | Mitsuo Oka |
| Tohban email: | moka@ssl.berkeley.edu |
| Next Tohban: | TBD |
| List all reports | |
Solar Activity
The solar activity was relatively low throughout the week although there were numerous C-class flares. There are currently 9 active regions on the disk and STEREO B shows no significantly bright region that would rotate onto the disk within a few days.
How many GOES flares occurred?
Flares above B, C, M, X class were 13 34 0 0
And how many of these are listed in the RHESSI flare list?
Flares above B, C, M, X class were 6 19 0 0
And how many had EXCELLENT coverage?
Flares above B, C, M, X class were 2 8 0 0
There were RHESSI flares/GOES flares 133 / 47 over the time range 08-Apr-14 15-Apr-14
Memory Management
The SSR had been relatively high due to extra aspect data.
Spacecraft Status
The cold plates, 1 and 2 were at 118.3 and 116.9 K, respectively, on 2014-04-16.
Data Gaps
No data gap
Detector issues
Many threshold/HV changes were made in G4 rear, G6 front and G8 rear, because their livetime kept decreasing. The G9 change was made to try to restore recorded events.
- G6 front fast threshold increased to 0xD0 (2014-04-10), 0xE0 (2014-04-11), HV decreased by 10 counts (2014-04-13), front fast threshold increased to 0xF0 (2014-04-15)
- G4 rear fast threshold increased to 0x60 (2014-04-10) and 0x70 (2014-04-15)
- G8 rear fast threshold increased to 0xC0 (on 2014-04-10), 0xD0 (on 2014-04-11), 0xE0 (2014-04-14) and 0xF0 (2014-04-15)
- G9 rear fast threshold decreased to 0x60 (on 2014-04-11)
Other notes
Spacecraft Management
| Decimation | Active/Vigorous |
| HLAT Decimation | Rear decimation weight 6, no front decimation |
| Night time data (fronts) | +/- 4 minutes |
| Night time data (rears) | +/- 4 minutes |
| Require extra passes? | Yes, for ADP data |
| Requirement for moving pointer? | No |
| Attenuator operation | Normal |
| Detector problems? | See motes above. |