Tohban Report 2017-07-12

Tohban Reports
Start Date:	5 July 2017
End Date:	12 July 2017
Tohban:	Jim McTiernan
Tohban email:	jimm@ssl.berkeley.edu
Next Tohban:	Martin Fivian
List all reports

Solar Activity

Some moderate activity, including an M flare, which RHESSI missed, except for the decay.

How many GOES flares occurred?

 Flares above B, C, M, X class were     47     8     1     0

And how many of these are listed in the RHESSI flare list?

 Flares above B, C, M, X class were     29     5     0     0

And how many had EXCELLENT coverage?

 Flares above B, C, M, X class were     16     2     0     0

There were RHESSI flares/GOES flares 104 / 56 over the time range 04-Jul-17 11-Jul-17

Memory Management

Decimation was active/vigorous for the full time period, with the SSR level currently at 27%

Spacecraft Status

Detectors 1, 3, 6, and 8 are recording events. The cold tips are 130.3 and 128.5 K as of 10-jul-2017. The cold plates, 1 and 2 are 155.7 and 154.2 K. Cryocooler power is steady at 74.7W, cryocooler efficiencies are 0.0271 and 0.0269. 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 2017/07/05

TIME RANGE: 2017-07-05T00:00:00.000 -- 2017-07-06T00:00:00.000
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 2017/07/06

TIME RANGE: 2017-07-06T00:00:00.000 -- 2017-07-07T00:00:00.000
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)
2017-07-06T20:50:00.000 -- 2017-07-06T20:55:00.000       300.00000

DATA GAPS FOR 2017/07/07

TIME RANGE: 2017-07-07T00:00:00.000 -- 2017-07-08T00:00:00.000
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 2017/07/08

TIME RANGE: 2017-07-08T00:00:00.000 -- 2017-07-09T00:00:00.000
GAPS IN APP_ID = 1 (VC1-SOH) WITH PACKET RATE LT 30
N_GAPS           1
GAP START TIME              GAP END TIME                   GAP (SEC)
2017-07-08T17:00:00.000 -- 2017-07-08T17:05:00.000       300.00000
NO GAPS IN APP_ID = 154 (VC1-PMTRAS)
NO GAPS IN APP_ID = 102 (VC3-MONITOR RATES)

DATA GAPS FOR 2017/07/09

TIME RANGE: 2017-07-09T00:00:00.000 -- 2017-07-10T00:00:00.000
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 2017/07/10

TIME RANGE: 2017-07-10T00:00:00.000 -- 2017-07-11T00:00:00.000
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 2017/07/11

TIME RANGE: 2017-07-11T00:00:00.000 -- 2017-07-12T00:00:00.000
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)
2017-07-11T07:30:00.000 -- 2017-07-12T00:00:00.000       59400.000

Detector issues

Detectors 1, 3, 6, and 8 are powered on, and are recording events. HV for detector 1 was dropped to 1500 V on 2017-07-05.

2017-186-20:23:58 start attenuator013_bg ; was at 19.2%, set to 23.5%

Notes

On 2017-07-05, the attenuator thresholds were changed, to reflect a new background of 23.5% deadtime.

2017-186-20:24:49 /IHVDAC DETECTOR=1, VOLTAGE=78 ; was ~2000V, set to ~1500V

Deadtime  Attenuator state
   0.00    Min A0
  28.63    Max A0
  25.10    Min A1
  30.59    Max A1
  24.31    Min A2
  38.43    Max A2
  25.88    Min A3
 100.00    Max A3

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
Detector problems?	See above