Tohban Report 2011-03-16
From RHESSI Wiki
|Start Date:||09 Mar 2011|
|End Date:||16 Mar 2011|
|Tohban:||Lindsay Glesener and Nicole Duncan|
|Tohban email:||firstname.lastname@example.org and email@example.comURIs of the form "firstname.lastname@example.org and email@example.com" are not allowed.|
|Next Tohban:||Hazel Bain|
|List all reports|
Solar activity is decreased from last week, baseline level is mid-to-high B class, versus C class last week. There was one X-class flare (caught by RHESSI), 4 M-class flares, and several C-class flares. (More specific update once a bug with hsi_tohban_flare_counter is worked out.) The most active regions, 11166 and 11169 will soon rotate off the disk, and the 2-3 ARs remaining have not been emitting flares, and STEREO-B shows that we will not have new ARs on the disk for a few days. This week is therefore expected to be quieter than last.
SSR hit a max of 80% due to the high activity a week ago. The SSR has emptied after the most recent pass; the decrease was due to added passes and the switch to Active/Vigorous decimation made on the 9th.
There were no data gaps, although the time period ~10 to 11 on March 9 has data that appears to be jumbled due to bad packets.
Commanding was done a few hours after last week's meeting (March 9): Detector 9 HV was lowered by 30 steps, and decimation was changed to ACTIVE / VIGOROUS. Detector 9's LLD (rear) was changed to FF.
Detector 9 continues to show odd behavior, but in a different way from last week. (The change in behavior roughly corresponded to the commanding of March 9.) Instead of large, frequent spikes, there are now few-minute periods of elevated rates in the front segment and decreased rates in the rear segment. (This could be due to a loss of segmentation.) For now, detector 9 controls will be left the same, but the threshold may be changed again next week.