Tohban Report 2015-07-08
From RHESSI Wiki
| Tohban Reports | |
|---|---|
| Start Date: | 01 Jul 2015 |
| End Date: | 08 Jul 2015 |
| Tohban: | Mitsuo Oka |
| Tohban email: | moka@ssl.berkeley.edu |
| Next Tohban: | TBD |
| List all reports | |
Contents |
Solar Activity
Solar activity remained relatively low this week although there were many C-class flares and 3 M-class flares later this week. Currently there are 9 ARs, and many of them are on the western side of the disk. We expect that solar activity remains relatively low next week.
How many GOES flares occurred?
Flares above B, C, M, X class were 9 24 3 0
And how many of these are listed in the RHESSI flare list?
Flares above B, C, M, X class were 7 17 3 0
And how many had EXCELLENT coverage?
Flares above B, C, M, X class were 3 8 2 0
There were RHESSI flares/GOES flares 166 / 36 over the time range 01-Jul-15 07-Jul-15
Memory Management
The daily average has gradually increased from 25% to 30% during this week.
Spacecraft Status
Data Gaps
There was no significant data gap (i.e., gaps were smaller than 900 sec).
Detector issues
D4 front livetime has decreased quickly down to ~58% during the last few days, and so the front fast threshold was raised yesterday from 0x60 to 0x70.
D9 front livetime is even lower at ~52% but the rate of decrease is much slower. The fast threshold is unchanged.
D6 rear livetime has also decreased but gradually down to 30-40%. The rear fast threshold was raised yesterday from 0x68 to 0x70.
There were more light leaks in D2 front when compared to those of last week.
Attenuator management
Spacecraft Management
The decimation was changed from Active/Vigorous to Normal/Vigorous at 2015-07-01 19:34:56 UTC.
The front segment events during eclipses were turned off and took effect at 2015-07-01 18:53:45 UTC.
| Decimation | Normal/Vigorous |
| Night time data (fronts) | No night events |
| Night time data (rears) | No night events |
| Require extra passes? | No |
| Attenuator operation | Performing an experiment |
