Tohban Report 2017-09-20
| Tohban Reports | |
|---|---|
| Start Date: | 13 September 2017 |
| End Date: | 20 September 2017 |
| 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 5 2 0 0
And how many of these are listed in the RHESSI flare list?
Flares above B, C, M, X class were 1 1 0 0
And how many had EXCELLENT coverage?
Flares above B, C, M, X class were 1 1 0 0
There were RHESSI flares/GOES flares 3 / 7 over the time range 12-Sep-17 19-Sep-17
Memory Management
Decimation was active/vigorous for the full time period, with the SSR level currently at 41%, recovering from the previous week's activity. We are approximately 2 days behind recovering data.
Spacecraft Status
Detectors 1, 3, 6, and 8 are recording events. The cold tips are 131.4 and 129.6 K as of 19-sep-2017. The cold plates, 1 and 2 are 156.8 and 155.4 K. Cryocooler power is steady at 74.1W, cryocooler efficiencies are 0.0271 and 0.0275. 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 13-sep-2017 to 19-sep-2017
TIME RANGE: 2017-09-13T00:00:00.000 -- 2017-09-19T00:00:00.000 NO GAPS IN APP_ID = 1 (VC1-SOH) 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) 2017-09-18T11:30:00.000 -- 2017-09-18T17:00:00.000 19800.000 2017-09-18T17:50:00.000 -- 2017-09-19T00:00:00.000 22200.000
Detector issues
Detectors 1, 3, 6, and 8 are powered on, and are recording events. No threshold or HV changes.
== 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 | See Notes above |
| Ref. deadtime for Att.thresholds | 18.x% |
| Detector problems? | See above |