Tohban Report 2017-01-11
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Revision as of 17:55, 11 January 2017
Tohban Reports | |
---|---|
Start Date: | 4 January 2016 |
End Date: | 11 January 2017 |
Tohban: | Pascal Saint-Hilaire |
Tohban email: | pascal@ssl.berkeley.edu |
Next Tohban: | TBD |
List all reports |
Contents |
Solar Activity
Very quiet this week, except for a few flares in the high Bs in the past day or so.
How many GOES flares occurred?
Flares above B, C, M, X class were 2 0 0 0
RHESSI flare list contains 0 over the time range 03-Jan-17 10-Jan-17
No overlapping RHESSI flares to count, sorry
Memory Management
Decimation was changed to Normal/Vigorous (from quiet/vigorous) last Wednesday. :
2017-004-21:38:11 start idpu_dec_normal_vigorous
The SSR has been hovering near the 20% level at the end of pass sets, and is set to be much lower than that at the end of today's set. It was peaking at ~35% at beginning of the pass set, meaning that there was a bit of decimation going on some of the time.
Detectors 3 and 9 are recording events during spacecraft day, and for 4 minutes prior to and after daylight.
Spacecraft Status
Detectors 3 and 9 are recording events. The cold tips are 128.6 and 126.2 K as of 3-Jan-2017, 17:00 UT. The cold plates, 1 and 2 are 154.3 and 155.3 K. Cryocooler power is steady at 80W, cryocooler efficiencies are in the range 0.026 to 0.0275. Cryocooler transients are frequent, resulting in a standard deviation of approximately 1 degree in the daily average cold tip temperatures. See:
http://sprg.ssl.berkeley.edu/~ayshih/soh/latest_temperatures.pdf
for a summary plot of recent temperatures, efficiencies and accelerometer values.
It has been noted recently that the SSR has been filling at a fast rate, resulting in low-energy decimation, and the SSR staying near 50%, the value at which the decimation starts. The extra memory fill is due to low energy counts:
In the figures, the low energy count rates are much higher in 2016 than they were in 2012.
Data Gaps
DATA GAPS FOR 2016/12/26
TIME RANGE: 2016-12-26T00:00:00.000 -- 2016-12-27T00:00:00.000 GAPS IN APP_ID = 1 (VC1-SOH) WITH PACKET RATE LT 30 N_GAPS 1 GAP START TIME GAP END TIME GAP (SEC) 2016-12-26T13:25:00.000 -- 2016-12-26T13:35:00.000 600.00000 NO GAPS IN APP_ID = 154 (VC1-PMTRAS) GAPS IN APP_ID = 102 (VC3-MONITOR RATES) WITH PACKET RATE LT 30 N_GAPS 1 GAP START TIME GAP END TIME GAP (SEC) 2016-12-26T04:50:00.000 -- 2016-12-26T06:10:00.000 4800.0000
DATA GAPS FOR 2016/12/27
TIME RANGE: 2016-12-27T00:00:00.000 -- 2016-12-28T00:00:00.000 NO GAPS IN APP_ID = 1 (VC1-SOH) NO GAPS IN APP_ID = 154 (VC1-PMTRAS) NO GAPS IN APP_ID = 102 (VC3-MONITOR RATES)
DATA GAPS FOR 2016/12/28
TIME RANGE: 2016-12-28T00:00:00.000 -- 2016-12-29T00:00:00.000 NO GAPS IN APP_ID = 1 (VC1-SOH) NO GAPS IN APP_ID = 154 (VC1-PMTRAS) NO GAPS IN APP_ID = 102 (VC3-MONITOR RATES)
DATA GAPS FOR 2016/12/29
TIME RANGE: 2016-12-29T00:00:00.000 -- 2016-12-30T00:00:00.000 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 6 GAP START TIME GAP END TIME GAP (SEC) 2016-12-29T08:20:00.000 -- 2016-12-29T08:30:00.000 600.00000 2016-12-29T13:10:00.000 -- 2016-12-29T16:40:00.000 12600.000 2016-12-29T17:25:00.000 -- 2016-12-29T17:40:00.000 900.00000 2016-12-29T19:15:00.000 -- 2016-12-29T19:30:00.000 900.00000 2016-12-29T22:20:00.000 -- 2016-12-29T22:25:00.000 300.00000 2016-12-29T23:35:00.000 -- 2016-12-29T23:50:00.000 900.00000
DATA GAPS FOR 2016/12/30
TIME RANGE: 2016-12-30T00:00:00.000 -- 2016-12-31T00:00:00.000 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 1 GAP START TIME GAP END TIME GAP (SEC) 2016-12-30T05:05:00.000 -- 2016-12-31T00:00:00.000 68100.000
DATA GAPS FOR 2016/12/31
TIME RANGE: 2016-12-31T00:00:00.000 -- 2017-01-01T00:00:00.000 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 1 GAP START TIME GAP END TIME GAP (SEC)
2016-12-31T00:00:00.000 -- 2017-01-01T00:00:00.000 86400.000
DATA GAPS FOR 2017/01/01
TIME RANGE: 2017-01-01T00:00:00.000 -- 2017-01-02T00:00:00.000 GAPS IN APP_ID = 1 (VC1-SOH) WITH PACKET RATE LT 30 N_GAPS 3 GAP START TIME GAP END TIME GAP (SEC) 2017-01-01T14:30:00.000 -- 2017-01-01T14:40:00.000 600.00000 2017-01-01T16:10:00.000 -- 2017-01-01T16:15:00.000 300.00000 2017-01-01T17:50:00.000 -- 2017-01-01T17:55:00.000 300.00000 GAPS IN APP_ID = 154 (VC1-PMTRAS) WITH PACKET RATE LT 4 N_GAPS 1 GAP START TIME GAP END TIME GAP (SEC) 2017-01-01T14:30:00.000 -- 2017-01-01T14:35:00.000 300.00000 GAPS IN APP_ID = 102 (VC3-MONITOR RATES) WITH PACKET RATE LT 30 N_GAPS 1 GAP START TIME GAP END TIME GAP (SEC) 2017-01-01T00:00:00.000 -- 2017-01-02T00:00:00.000 86400.000
DATA GAPS FOR 2017/01/02
TIME RANGE: 2017-01-02T00:00:00.000 -- 2017-01-03T00:00:00.000 NO GAPS IN APP_ID = 1 (VC1-SOH) GAPS IN APP_ID = 154 (VC1-PMTRAS) WITH PACKET RATE LT 4 N_GAPS 1 GAP START TIME GAP END TIME GAP (SEC) 2017-01-02T13:15:00.000 -- 2017-01-02T17:20:00.000 14700.000 GAPS IN APP_ID = 102 (VC3-MONITOR RATES) WITH PACKET RATE LT 30 N_GAPS 1 GAP START TIME GAP END TIME GAP (SEC) 2017-01-02T00:00:00.000 -- 2017-01-03T00:00:00.000 86400.000
Detector issues
Detectors 3 and 9 are powered on, and are recording events. No threshold or HV canges during the week.
Notes
Spacecraft Management
Decimation | Normal/Vigorous |
HLAT Decimation | Rear decimation |
Night time data (fronts) | full-time |
Night time data (rears) | full-time |
Require extra passes? | No |
Requirement for moving pointer? | No |
Attenuator operation | Working as expected |
Detector problems? | See notes above. |