Tohban Report 2015-12-16
From RHESSI Wiki
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== Solar Activity == | == Solar Activity == | ||
+ | Solar activity was low (at B-class level) through out the week although there were some C-class activities during the weekend. There are 9 ARs on disk. 4 ARs are expected to be rotated off the disk within 1 or 2 days. | ||
+ | How many GOES flares occurred? | ||
+ | Flares above B, C, M, X class were 6 1 0 0 | ||
+ | And how many of these are listed in the RHESSI flare list? | ||
+ | Flares above B, C, M, X class were 2 1 0 0 | ||
+ | And how many had EXCELLENT coverage? | ||
+ | Flares above B, C, M, X class were 2 0 0 0 | ||
+ | |||
+ | There were RHESSI flares/GOES flares 183 / 7 | ||
+ | over the time range 07-Dec-15 14-Dec-15 | ||
== Memory Management == | == Memory Management == | ||
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== Spacecraft Status == | == Spacecraft Status == | ||
- | The cold plates, 1 and 2 were at | + | The cold plates, 1 and 2 were at 132.5 and 131.1 K, on 2015-12-15. |
== Data Gaps == | == Data Gaps == |
Revision as of 05:37, 16 December 2015
Tohban Reports | |
---|---|
Start Date: | 9 Dec 2015 |
End Date: | 16 Dec 2015 |
Tohban: | Mitsuo Oka |
Tohban email: | moka@ssl.berkeley.edu |
Next Tohban: | TBD |
List all reports |
Contents |
Solar Activity
Solar activity was low (at B-class level) through out the week although there were some C-class activities during the weekend. There are 9 ARs on disk. 4 ARs are expected to be rotated off the disk within 1 or 2 days.
How many GOES flares occurred?
Flares above B, C, M, X class were 6 1 0 0
And how many of these are listed in the RHESSI flare list?
Flares above B, C, M, X class were 2 1 0 0
And how many had EXCELLENT coverage?
Flares above B, C, M, X class were 2 0 0 0
There were RHESSI flares/GOES flares 183 / 7 over the time range 07-Dec-15 14-Dec-15
Memory Management
Decimation was active/vigorous for the full time period. Both front and rear detectors are off during SC night, except for 4 minutes on either side. The SSR is not emptying out.
Spacecraft Status
The cold plates, 1 and 2 were at 132.5 and 131.1 K, on 2015-12-15.
Data Gaps
Detector issues
D1
Enhanced fast rates (and reduced livetime) in the rear segment. Because rear-fast threshold is already at 0xFF, we tried lowering HV. No obvious change in the monitor rates.
Dec 14, 18:19, lowered HV from 3600 to 3400 V.
D2
Dec 09, 23:42, raised front fast threshold from 0x70 to 0xFF Dec 14, 18:19, lowered HV from 4100 to 3900 V
D3
Dec 10, 16:42-18:19, power-cycling
D4
Dec 10, 21:38, lowered HV from 1500 V to 1000 V Dec 12, 00:33, events turned on for 3.5 min
D5
No change made
D6
Dec 10, 19:58, lowered front slow threshold from 0x40 to 0x30 Dec 12, 00:30, lowered front slow threshold from 0x30 to 0x20
D7
Dec 10, 21:38, lowered front slow threshold from 0x20 to 0x10 Dec 12, 00:33, lowered HV from 3500 to 3300 V Dec 12, 19:20, raised front slow threshold from 0x10 to 0x20
D8
No change made
D9
D9 is off
Other notes
Spacecraft Management
Decimation | Active/Vigorous |
HLAT Decimation | Rear decimation weight 6, no front decimation |
Night time data (fronts) | +/- 4 minutes |
Night time data (rears) | +/- 4 minutes |
Require extra passes? | No |
Requirement for moving pointer? | No |
Attenuator operation | Working as expected |
Detector problems? | See notes above. |