Tohban Report 2014-10-15
| Tohban Reports | |
|---|---|
| Start Date: | 08 Oct 2014 |
| End Date: | 15 Oct 2014 |
| Tohban: | Juan Carlos Martínez Oliveros |
| Tohban email: | oliveros@ssl.berkeley.edu |
| Next Tohban: | Juan Camilo Buitrago-Casas |
| List all reports | |
Solar Activity
Solar activity was low this week with some sporadic M class flares. Currently there are 4 active regions on disk and the active region responsible for the latest M class flares will be rotating onto the disk this week.
How many GOES flares occurred?
Flares above B, C, M, X class were 7 18 5 0
And how many of these are listed in the RHESSI flare list?
Flares above B, C, M, X class were 6 9 5 0
And how many had EXCELLENT coverage?
Flares above B, C, M, X class were 5 2 2 0
There were RHESSI flares/GOES flares 127 / 30 over the time range 08-Oct-14 15-Oct-14
Memory Management
The SSR was emptying by the end of the daily pass set during most of the week. A joint observation with SDO made the SSR to reach a maximum of ~44% and as the last BGS contact the SSR fill levels was at about ~9% most likely due to the latest flares.
Temperature
Cold tip temperatures where a little high this week triggering two warnings. As the last pass the colt tip temperatures are 127.1 K and 125.4 K.
Spacecraft Operations
The spacecraft is operating nominally. The attenuators are working correctly. A special operation during SDO rolling maneuver was schedule from 2014/281 17:51 to 282 00:41 during which we intend to collect as much RHESSI/SAS data as possible. Everything worked as planned and additional passes allowed to minimize the impact on the SSR fill level.
The decimation was changed on October 13 at19:59 UT to NORMAL/VIGOROUS and event collection during nights from both the front and rear segments was enable.
Data Gaps
No gaps this week.
Detector issues
Detector 2 continue showing light leak issues as well as detector 5.
Detector 9, still show some spikes but the number of spikes became less frequent.
One spike was observed on October 8 in detector 5. http://sprg.ssl.berkeley.edu/~tohban/browser/?show=grth1+qlpcr+qlpfr+qlprr+monfs+monfl+monfr+monff+monrs+monrl+monrr+monrf&date=20141008&time=065450&bar=1
There were no threshold changes this week.
Other notes
| Decimation | Normal/Vigorous |
| HLAT Decimation | Rear decimation weight 6, no front decimation |
| Night time data (fronts) | full nighttime events |
| Night time data (rears) | full nighttime events |
| Require extra passes? | Yes |
| Requirement for moving pointer? | No |
| Attenuator operation | Nominal |
| Detector problems? | Detector 5, 9 spikes |