RHESSI Tohban Report, 23-Sep-2004 to 30-Sep-2004 by Paula Balciunaite (balciunaite@ssl.berkeley.edu) 1) Solar Activity Activity was especially low this week, around GOES B-level. 19 B-class flares occurred. Two faint active regions are currently on the disk, unlikely to result in significant activity increase. 2) Memory Management SSR fill level remained ~30% the entire week. 3) Data Gaps Operators did the best they could to replay all data, but problems with Wallops this week resulted in several data gaps. (Mark Lewis explained that Wallops had problems with their 11m antenna and as a result had to drop contacts; for supported contacts the 9m antenna was used, which resulted in additional drops). GAPS IN APP_ID = 102 (VC3-MONITOR RATES) WITH PACKET RATE LT 30 GAP START TIME GAP END TIME GAP (SEC) 2004-09-23T13:45:00.000 -- 2004-09-23T16:00:00.000 8100.0000 2004-09-23T18:45:00.000 -- 2004-09-23T20:50:00.000 7500.0000 2004-09-23T23:20:00.000 -- 2004-09-24T00:00:00.000 2400.0000 2004-09-24T00:00:00.000 -- 2004-09-24T02:00:00.000 7200.0000 2004-09-27T09:00:00.000 -- 2004-09-27T11:05:00.000 7500.0000 2004-09-28T13:40:00.000 -- 2004-09-28T17:20:00.000 13200.000 2004-09-28T22:35:00.000 -- 2004-09-28T22:40:00.000 300.00000 2004-09-29T14:45:00.000 -- 2004-09-29T17:55:00.000 11400.000 2004-09-29T23:20:00.000 -- 2004-09-30T00:00:00.000 2400.0000 4) Optimisation of Decimation Paolo Grigis prompted a discussion about the optimality of the existing decimation scheme for the current ultra-quiet solar conditions. Namely, he noted that front segment decimation is not optimal for micro/nano flare studies. It was thus decided to change the decimation mode to "normal/vigorous" for the time being. The decimation state change was implemented at 2004-274-21:24:33 UT, the SSR fill level dropped to 25%, and the hiatus in front decimation was thus achieved. 5) Next Week's Tohban: Sa"m Krucker