Tohban Report 2011-12-28: Difference between revisions
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== Solar Activity == | == Solar Activity == | ||
There were more flares than last week and the GOES background level is almost C-class, so all flares were classified as C or above. There were also a few M-class flares. Most of the recent flares have come from AR 11387, currently at S21W66. There are nine active regions on the disk now, though five of these are clustered near AR 11387 and will only be visible for another day or two. | There were more flares than last week and the GOES background level is almost C-class, so all flares were classified as C or above. There were also a few M-class flares. Most of the recent flares have come from AR 11387, currently at S21W66. There are nine active regions on the disk now, though five of these are clustered near AR 11387 and will only be visible for another day or two. A new region (11388) has come over the eastern limb and is producing flares. On the 25th and 26th there were long duration events that kicked off CMEs. | ||
How many GOES flares occurred? | How many GOES flares occurred? | ||
Revision as of 18:53, 28 December 2011
| Tohban Reports | |
|---|---|
| Start Date: | 21 Dec 2011 |
| End Date: | 28 Dec 2011 |
| Tohban: | Lindsay Glesener |
| Tohban email: | glesener@ssl.berkeley.edu |
| Next Tohban: | TBD |
| List all reports | |
Solar Activity
There were more flares than last week and the GOES background level is almost C-class, so all flares were classified as C or above. There were also a few M-class flares. Most of the recent flares have come from AR 11387, currently at S21W66. There are nine active regions on the disk now, though five of these are clustered near AR 11387 and will only be visible for another day or two. A new region (11388) has come over the eastern limb and is producing flares. On the 25th and 26th there were long duration events that kicked off CMEs.
How many GOES flares occurred?
Flares above B, C, M, X class were 0 41 3 0
And how many of these are listed in the RHESSI flare list?
Flares above B, C, M, X class were 0 33 3 0
And how many had EXCELLENT coverage?
Flares above B, C, M, X class were 0 20 0 0
RHESSI Operations
There were no further anomalies and no special commanding to the spacecraft this week. Decimation remains at Normal/Vigorous.
Data Gaps
No gaps in monitor rates this week, but some very short gaps in SOH data:
GAPS IN APP_ID = 1 (VC1-SOH) WITH PACKET RATE LT 30 GAP START TIME GAP END TIME GAP (SEC) 2011-12-25T13:50:00.000 -- 2011-12-25T13:55:00.000 300.00000 2011-12-25T15:30:00.000 -- 2011-12-25T15:35:00.000 300.00000 2011-12-25T17:10:00.000 -- 2011-12-25T17:15:00.000 300.00000 2011-12-24T17:15:00.000 -- 2011-12-24T17:20:00.000 300.00000 2011-12-22T15:40:00.000 -- 2011-12-22T15:45:00.000 300.00000 2011-12-21T14:45:00.000 -- 2011-12-21T14:50:00.000 300.00000 2011-12-21T15:45:00.000 -- 2011-12-21T15:50:00.000 300.00000
Detector issues
There was no unusual behavior. Detectors 3 and 6 fast rates are high during and after the SAA, like they always are. There were a couple small spikes (not counting spikes right around the SAA):
Det. 4: small spike at 1332 on the 26th, just before eclipse ended.
Det. 6: very small spike at 0948 on the 24th.
At 0421 on the 22nd and 0621 on the 21st there were spikes in all detector rates, but this is probably just bad rate data that has since been replayed, not a real problem.