Tohban Report 2018-01-31
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| Tohban Reports | |
|---|---|
| Start Date: | 24 January 2018 |
| End Date: | 31 January 2018 |
| Tohban: | Jim McTiernan |
| Tohban email: | jimm@ssl.berkeley.edu |
| Next Tohban: | TBD |
| List all reports | |
Solar Activity
Quiet...
How many GOES flares occurred?
Flares above B, C, M, X class were 1 0 0 0
RHESSI flare list contains 0 over the time range 24-Jan-18 31-Jan-18
Memory Management
Decimation was active/vigorous for the full time period, SSR fill was between 0 and 35%. Currently the SSR fill is approximately 20% at the end of passes each day.
Spacecraft Status
Detectors 3, 6, and 8 are recording events. The cold tips are 133.4 and 131.6 K as of 29-Jan-2018. The cold plates, 1 and 2 are 158.7 and 157.3 K. Cryocooler power is 64.3W, cryocooler efficiencies are 0.0302 and 0.0306. See:
http://sprg.ssl.berkeley.edu/~ayshih/soh/latest_temperatures.pdf
for a summary plot of recent temperatures, efficiencies and accelerometer values.
Data Gaps
DATA GAPS FOR 24-jan-2018 TO 31-jan-2018
TIME RANGE: 2018-01-24T00:00:00.000 -- 2018-01-31T00:00:00.000 GAPS IN APP_ID = 1 (VC1-SOH) WITH PACKET RATE LT 30 N_GAPS 3 GAP START TIME GAP END TIME GAP (SEC) 2018-01-25T13:50:00.000 -- 2018-01-25T13:55:00.000 300.00000 2018-01-25T20:20:00.000 -- 2018-01-25T20:25:00.000 300.00000 2018-01-28T15:15:00.000 -- 2018-01-28T15:20:00.000 300.00000 NO GAPS IN APP_ID = 154 (VC1-PMTRAS) GAPS IN APP_ID = 102 (VC3-MONITOR RATES) WITH PACKET RATE LT 30 N_GAPS 2 GAP START TIME GAP END TIME GAP (SEC) 2018-01-29T08:35:00.000 -- 2018-01-29T10:50:00.000 8100.0000 2018-01-30T05:45:00.000 -- 2018-01-31T00:00:00.000 65700.000
Detector issues
Detectors 3, 6, 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? | No |
| Attenuator operation | Nominal |
| Ref. deadtime for Att.thresholds | 35.x% |
| Detector problems? | See above |