Tohban Report 2018-03-28
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| Tohban Reports | |
|---|---|
| Start Date: | 21 March 2018 |
| End Date: | 28 March 2018 |
| Tohban: | Pascal Saint-Hilaire |
| Tohban email: | shilaire@berkeley.edu |
| Next Tohban: | TBD |
| List all reports | |
Solar Activity
Very quiet...!
Memory Management
SSR fill was at 60% on Monday, and rapidly crept up to ~78% on Wednesday, due lack of passes.
Spacecraft Status
Detectors 3 and 8 are recording events. The cold tips are 136.4 and 134.6 K as of 19-Mar-2018. The cold plates, 1 and 2 are 159.6 and 158.2 K. Cryocooler power is 54.9W, cryocooler efficiencies are 0.0339 and 0.0343. See:
http://sprg.ssl.berkeley.edu/~ayshih/soh/latest_temperatures.pdf
for a summary plot of recent temperatures, efficiencies and accelerometer values.
Data Gaps
Due to high SSR fill, there is little data for this week that has been downloaded.
Detector issues
Detectors 3 and 8 are powered on, and are recording events. No threshold changes or HV changes this past week.
Spacecraft Management
| Decimation | Active/Vigorous |
| HLAT Decimation | Rear decimation |
| Night time data (fronts) | plus/minus 4 minutes from daylight |
| Night time data (rears) | plus/minus 4 minutes from daylight |
| Require extra passes? | No |
| Requirement for moving pointer? | See above |
| Attenuator operation | Nominal |
| Ref. deadtime for Att.thresholds | 22.x% |
| Detector problems? | See above |