Tohban Report 2013-03-06
From RHESSI Wiki
| Tohban Reports | |
|---|---|
| Start Date: | 27 Feb 2013 |
| End Date: | 6 Mar 2013 |
| Tohban: | Lindsay Glesener |
| Tohban email: | glesener@ssl.berkeley.edu |
| Next Tohban: | Juan Carlos Martinez Oliveros |
Contents |
Solar Activity
The Sun remained fairly quiet this week, with only a few C flares and 1 M class flare. There are 10 AR on the disk right now, pretty well spread across longitude. The region that produced the C and M flares (11686) will stick around for a couple more days before rotating off the disk. STEREO-B doesn't show anything too exciting about to rotate on.
[UPDATE] Following up on Mark's comment, it looks like there was a largish backside CME on March 5th. My guess at its position indicates that it was not from a region close to rotating on-disk. Even so, perhaps it will give us some more large events which could be observed partly-occulted from Earth's POV.
How many GOES flares occurred?
Flares above B, C, M, X class were 18 3 1 0
And how many of these are listed in the RHESSI flare list?
Flares above B, C, M, X class were 12 2 0 0
And how many had EXCELLENT coverage?
Flares above B, C, M, X class were 6 0 0 0
There were RHESSI flares/GOES flares 153 / 22 over the time range 27-Feb-13 06-Mar-13
Memory Management
The SSR is emptying after each pass set.
Spacecraft Status
CP2 is at ~110K, not a big change from last week.
On Day 64 the EDAC (error detection and correction circuitry) counter started increasing, indicating an error on the onboard CPU. This is not so unusual; it happens from time to time. The error was corrected and the error counter cleared. The error counter was increasing for about a half hour. No data was lost.
Data Gaps
No data gaps noticed by the tohban. According to Jeremy, there are some very small gaps (<4 sec) on DOY 64 and 65. Those will be replayed today.
Detector issues
There was an isolated spike in Detector 8 on March 2 at ~15:48 UT. This was during a flare, just after exiting the SAA, so maybe a particularly stressful time for that detector. No other spikes or problems were noticed for the week.
We didn't do anything with Detector 2 this week. The plan is to stay at this HV and threshold setting for at least another week while we assess its performance.
Other notes
| Decimation | Normal/vigorous |
| HLAT Decimation | Rear decimation weight 6, no front decimation |
| Night time data (fronts) | +/- 4 minutes |
| Night time data (rears) | Taking data at nights |
| Require extra passes? | No |
| Requirement for moving pointer? | No |
| Attenuator operation | Normal |
| Detector problems? | No problems. |