RHESSI Tohban report, December 22, 2004 to December 29, 2004 Andr=E9 Csillaghy (csillag@ssl.berkeley.edu) 1. Solar Activity: Activity started the week at low levels. Dec 25 had not a single GOES=20= event. After this date, the activity increased, as a result of the=20 growth of AR0713. A C1 on Dec 26, many B-level events on Dec 27 and an=20= active day on Dec 28 with several > C2-class flares and an M1-class=20 flare 12UT today (Dec 29). Note also the C7.2 flare not associated with a named NOAA region on Dec=20= 28. How many GOES flares occurred? Flares above B, C, M, X class were 30 5 0 0 And how many of these are listed in the RHESSI flare list? Flares above B, C, M, X class were 10 4 0 0 And how many had EXCELLENT coverage? Flares above B, C, M, X class were 8 0 0 0 There were RHESSI flares/GOES flares 38 / 35 over the time range 21-Dec-04 28-Dec-04 2. Memory Management: The memory level was low at the beginning of the week (4%), but=20 increased significantly to 45%. It was still at 27% before the=20 M-flare went on, so it might be quite high at the next pass. 3. Operations: Spin period at 14.734 rpm 4. Gaps On Dec 24, 2x 5 min and a 10 min gap On Dec 27 10 min gap 4. Other Hugh hudson noted an unusal event on the summary plots at about 10:18 25-Dec. Probably it was a detector arc that caused high dead time and a shutter motion, but it looks like it was accompanied by a soft X-ray burst and so it may be something else. Looking at it in more details, it is noticeable in most detectors on=20 the quicklook plots, front segments, and also partly in the rears. It=20 is not associated with a GOES event. 5. Next week's tohban: Paula Balciunaite - Andr=E9 is going to keep the beeper till Dec 31st,=20= and let it on her desk this day. It will be unattended until Jan1st.