Tohban Report 2015-09-30
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| Tohban Reports | |
|---|---|
| Start Date: | 23 Sep 2015 |
| End Date: | 30 Sep 2015 |
| Tohban: | Lindsay Glesener |
| Tohban email: | glesener@ssl.berkeley.edu |
| Next Tohban: | TBD |
| List all reports | |
Solar Activity
Memory Management
Spacecraft Status
Data Gaps
Detector issues
- On Sept 23, it was decided that the last changes to the slow threshold were probably too drastic, especially considering that the fast threshold was changed at the same time. We backed the front slow threshold back down to 0x1C, which is what it had been before the last adjustment. This needs to be monitored to see how D3 operates in this state, and keep an eye on the slow rates + SSR.
2015-266-19:24:00 /IDPUTABLE3 OFFSET=FRONTSLOWDAC 2015-266-19:24:12 /IDPLOAD VALUE=0x1C ;was 0x80
- Sept. 23 2015: Despite our best efforts, there's been no success in recovering livetime from D4. The front segment livetime is essentially 0. Since desperate times call for desperate measures, we're lowering the HV by 1000V to try and recover some performance. (This was temporarily tried last week, for an orbit, and the livetime did rise to 30%.) The detector does not seem to be anywhere near segmenting.
2015-266-19:25:51 /IHVDAC DETECTOR=4, VOLTAGE=134 (2598 V)
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? | No |
| Requirement for moving pointer? | No |
| Attenuator operation | See Above |
| Detector problems? | See motes above. |