RHESSI Tohban report, 20-Apr-2004 to 26-apr-2004

Richard Schwartz (richard@ssl.berkeley.edu)
[as told to HSH]

1. Solar Activity

There was a surge of activity, but alas not resulting in any X-class
flares:

How many GOES flares occurred?
  Flares above B, C, M, X class were     33    38     4     0
And how many of these are listed in the RHESSI flare list?
  Flares above B, C, M, X class were     16    26     3     0
And how many had EXCELLENT coverage?
  Flares above B, C, M, X class were     13    18     0     0
       
There were RHESSI flares/GOES flares         133 /           75
over the time range 20-Apr-04 27-Apr-04

So, four M-class events of which we got good coverage for 3.

2. Quicklook flare lists

This was a big contrast to last week from the point of view of
the automated flare counting:

How many GOES flares occurred?
   Flares above B, C, M, X class were     31     7     1     0
And how many of these are listed in the RHESSI flare list?
   Flares above B, C, M, X class were      5     6     1     0
And how many had EXCELLENT coverage?
   Flares above B, C, M, X class were      4     5     1     0

There were RHESSI flares/GOES flares          29 /           39
over the time range 11-Apr-04 18-Apr-04
  	
2. Joint observations

We concluded JOP and TRACE collaboration on quiet-Sun microflares.
As with the previous try the Sun got active again. We should do
this again hoping for dead minimum conditions.

3. Decimation

Normal/Normal all week.

4. Memory Management

A surge associated with the higher activity and with the passage of
the RHESSI orbit through one of its "mormal" particle-count maxima.
This is about the fifth since the October-November flares and brings
the rates down (almost) to mid-2003 levels, still elevated over 2002.

5. Data Gaps

No comment

6. Cooler

Signatures look stable still

7. Tohban

Jim McTiernan is the tohban til May 2.