RHESSI Tohban Report, 21-Oct-2004 to 28-Oct-2004
by Steven Christe (schriste@ssl.berkeley.edu)


1) Solar Activity

Activity has been above average due mostly to AR#0687 which produced 
most of the C-class flares and all of the M-class flares.  It seems 
to be quieted down in the last 2 days while AR#0693 is rotating onto 
and taking it's place, producing more C-class activity.  The GOES
background remained in the low to high B-range.

How many GOES flares occurred?
  Flares above B, C, M, X class were     32    36     3     0
And how many of these are listed in the RHESSI flare list?
  Flares above B, C, M, X class were     13    24     1     0
And how many had EXCELLENT coverage?
  Flares above B, C, M, X class were     10    13     0     0
  
There were RHESSI flares/GOES flares         125 /           71
over the time range 20-Oct-04 27-Oct-04

The one RHESSI M-flare observation consists of part of the rise all of
the decay (it was rather impulsive).

2) Memory Management

The SSR Fill Level remained under control (<~30%) though solar activity was slightly
more energetic than average.  We remained in decimation mode T

3) Data Gaps

2004-10-25T16:05:00.000 -- 2004-10-25T16:10:00.000       300.00000 (fixed?)
2004-10-22T14:05:00.000 -- 2004-10-22T16:10:00.000       7500.0000

4) Operations
The voltage on detector 5 was changed at the times listed below.  
Please note that all times are on October 27, 2004 UT:

2004-301-02:53:46  /ihvdac detector=5, voltage=96
2004-301-02:54:48  /ihvdac detector=5, voltage=92

Detector 5 is currently operating at about 1764 V and is still segmented.
The change was made to resolve high rate issues.  It may affect energy
resolution.

5) Next Week's Tohban: Albert Shih