RHESSI Tohban report, 18-Jan-2006 to 25-Jan-2006
Pascal Saint-Hilaire, shilaire@ssl.berkeley.edu

1. Solar Activity

Solar activity picked up this week, culminating in 5 C-flares on Jan 22,
produced by AR 10848. RHESSI caught the impulsive phase of only 2 of them.

GOES baseline level started the week around A3, rose to B-level, and is 
presently about A8.

The numbers from hsi_tohban_flare_counter.pro are plainly false this week
(we had several C-flares least during that time interval):

How many GOES flares occurred?
  Flares above B, C, M, X class were     52     6     0     0
And how many of these are listed in the RHESSI flare list?
  Flares above B, C, M, X class were     17     3     0     0
And how many had EXCELLENT coverage?
  Flares above B, C, M, X class were     13     2     0     0

There were RHESSI flares/GOES flares          30 /           58
over the time range 17-Jan-06 24-Jan-06 


2. Memory Management

The SSR started the week at around 47%, and only very slowly decreased 
to the present level of about 30% (by the end of today's last BGS pass).

Fronts were decimated with a weight of 2 or 3 during the week.

Front segment data are not taken during S/C night.


3. Data gaps

GAP START TIME              GAP END TIME                   GAP (SEC)
2006-01-19T12:40:00.000 -- 2006-01-19T12:50:00.000       600.00000
2006-01-20T16:10:00.000 -- 2006-01-20T16:20:00.000       600.00000



4. Shutter issue, livetime determination

The issue where some of the detector number where shifted, in order to determine 
average livetime and ordering shutter movements looks like it has been fixed
(we are now be using detectors 1,3,4, and 5) :Since last Thursday, we've been 
in the A0 state at all times, excepts twice on Sunday, during the C-flares, where 
they moved to the A1 state for a few minutes (we went very briefly in A3 at the end 
of that last C-flare, just as RHESSI was entering the SAA).



5.  Next Tohban:
	Ya-Hui Yang.