RHESSI Tohban Report, 01-Feb-2005 to 07-Feb-2005 by Albert Shih (ayshih@ssl.berkeley.edu) 1) Solar Activity The Sun has been pretty quiet. Active region 0720 has returned as active region 0732, but with very little activity (i.e. little chance for X-class flares, much less gamma-ray flares). How many GOES flares occurred? Flares above B, C, M, X class were 31 6 0 0 And how many of these are listed in the RHESSI flare list? Flares above B, C, M, X class were 9 3 0 0 And how many had EXCELLENT coverage? Flares above B, C, M, X class were 4 1 0 0 There were RHESSI flares/GOES flares 39 / 37 over the time range 30-Jan-05 06-Feb-05 2) Memory Management The SSR has stayed fairly empty, so nighttime events in the front detectors will soon be recorded again. 3) Operations The high voltages on detectors 5 and 6 were lowered on Thursday to remedy a noise problem. 3) Next Week's Tohban: Amir Caspi