Tohban report, 22-Mar-2006 to 29-Mar-2006
Ya-Hui Yang, yhyang@ssl.berkeley.edu

1. Solar Activity: Low, several B class flares during this week. In the 
most time of Mar. 24~27, it's less than B level (~A3). Active region 
10865 appeared in the solar disk.


How many GOES flares occurred?
  Flares above B, C, M, X class were     30     6     0     0
And how many of these are listed in the RHESSI flare list?
  Flares above B, C, M, X class were      2     5     0     0
And how many had EXCELLENT coverage?
  Flares above B, C, M, X class were      1     3     0     0

There were RHESSI flares/GOES flares          11 /           36
over the time range 21-Mar-06 28-Mar-06

 
2. Memory Managment:

Decimation was changed to "Crab/Normal" during the solar eclipse on 
Mar. 29, and then changed back to "Normal/Vigorous" after the eclipse. 
The SSR fill level was ~56% at the beginning, up to ~67% during this 
week, and then decreased to ~37% before the decimation changed. The SSR
ended up at ~40% after the declimation changed back to the normal mode.
It is ~42% by the end of last BGS pass today.

3. Data Gaps:

VC1 gap:
GAP START TIME              GAP END TIME                   GAP (SEC)
2006-03-22T13:00:00.000 -- 2006-03-22T16:20:00.000       12000.000
2006-03-22T21:25:00.000 -- 2006-03-22T21:35:00.000       600.00000
2006-03-23T04:00:00.000 -- 2006-03-23T04:25:00.000       1500.0000

VC2 gap:
GAP START TIME              GAP END TIME                   GAP (SEC)
2006-03-22T13:05:00.000 -- 2006-03-22T16:15:00.000       11400.000
2006-03-26T14:30:00.000 -- 2006-03-26T15:10:00.000       2400.0000
2006-03-26T14:35:00.000 -- 2006-03-26T15:05:00.000       1800.0000

VC3 gap:
GAP START TIME              GAP END TIME                   GAP (SEC)
2006-03-22T13:00:00.000 -- 2006-03-22T13:40:00.000       2400.0000


4. GRB:

RHESSI observed a GRB at ~07:05 UT on Mar. 23, which was also observed by 
INTEGRAL (SPI-ACS) and Konus. Thanks Hugh Hudson, David Smith, and Kevin 
Hurley to mention and confirm it.

David Smith added a new link of GRB website in the "Tohban Links".

5. other things:

Solar eclipse occurred during ~07:36-12:45 UT on Mar. 29. So, as Gordon
Hurford suggested, the declimation changed to the "Crab" mode during the
eclipse as done in quiet sun.

5. Next week's tohban: Amir Caspi (cepheid@ssl.berkeley.edu)