RHESSI TOHBAN REPORT 11/25/04 - 12/01/04
Hugh Hudson (hhudson@ssl.berkeley.edu)

1) Solar Activity

Activity remained at a low-to-moderate level:

How many GOES flares occurred?
  Flares above B, C, M, X class were     16    10     0     0
And how many of these are listed in the RHESSI flare list?
  Flares above B, C, M, X class were     11     8     0     0
And how many had EXCELLENT coverage?
  Flares above B, C, M, X class were      8     3     0     0
       
There were RHESSI flares/GOES flares          55 /           26
over the time range 23-Nov-04 30-Nov-04

not including an M-class flare that we probably nailed the impulsive
phase, at least (1-dec-04 07:20).

 ***** note added in proof - we missed the impulsive phase! ******

2) Memory Management

Normal usage as the fill level dropped through the week, getting
below 10% at close of business Sunday. There are still lots of
particle counts, including some shutter-closing rate levels
(e.g. 27-Nov 18:15; note the interesting spectral variation
through this event). Relative to last week the events appear
to come at earlier times, for whatever that's worth. We
must be sampling different parts of the orbital precession
phase.

3) Data Gaps

None

4) Special operations

None

5) Data survey 

The flare-finder missed an interesting pretty special case
on 29-Nov (19:45). But who can blame it?

There was an anomalous shutter motion on 30-nov at 04:20. 
The flare flag also was set at the time of the motion. 
Presumably this is another detector glitch (the flare flag
also was set) but the browser does not have the monitor
rates plots yet so it is hard to check.

6) Suggestion. I haven't analyzed this quantitatively, but
it is fairly obvious (see the monitor rates browser plot at
http://sprg.ssl.berkeley.edu/~ayshih/browser/monrates.html
for 29-nov, just the most recent example, to see the effect
of D8 telemetry noise. Can we eliminate these unwanted counts
somehow and thus save the occasional station pass?

7) Next week's tohban will be Jim McTiernan