Tohban report, 10-jan-2005 to 18-jan-2005
H. Hudson, hhudson@ssl

1. Solar Activity

Strong activity erupted suddenly, with clear signatures in GOES
data: from Jan. 11, ~12:00 UT, swarms of microflares began to 
appear. These became bigger and bigger, and from Jan. 13 ~12:00
the GOES baseline began to rise and M-class flares happened.
This led to two X-class flares on Jan. 15, both with particle
events, and another (X3.8) on Jan. 17. Almost all of the larger flares 
were from AR 0720, but an M-class flare did occur in AR 0718. 

How many GOES flares occurred?
  Flares above B, C, M, X class were     33    60    12     3
And how many of these are listed in the RHESSI flare list?
  Flares above B, C, M, X class were     15    35     8     3
And how many had EXCELLENT coverage?
  Flares above B, C, M, X class were     11    23     3     0
       
There were RHESSI flares/GOES flares         204 /          108
over the time range 10-Jan-05 18-Jan-05

Non-flare shutter motion caused by intense radiation event
8-jan 22:23. Abby should look at this and its repeats.

2. Memory management

The SSR usage shot upwards starting Friday (Jan. 14), to the point that
we exceeded 90% on the first pass of Jan. 16. Accordingly, we deleted
data by moving the read pointer:

015-10:50 UT through 015-13:00 UT
and 
016-06:00 UT through 016-21:12 UT

to make room for further important events. We also increased the
decimation level:

2005-014-22:55:15  start idpu_dec_active_vigorous

On Jan. 17 we again attempted to move the read pointer again,
following the X3.8 on that day. An error was made and the write
pointer was moved, rather than the read pointer. This resulted
unfortunately in deleting an interesting pre-flare data set.

3. Data Gaps: 

15-jan 11:00-13:00 (packets missing)
16-jan 05:55-21:10 (packets missing)

4. Commanding

Routine spin-up was done as follows:

2005-014-22:58:29  /acssetmode precession
2005-014-22:58:35  /acssetmode auto

5. Flare-finder peculiarities

Missed 11-jan 16:15
Missed 12-jan 00:15, 00:38, 00:46
Missed 14-jan 11:12 kind of interesting case
Missed 14-jan 11:26 less interesting case