RHESSI Tohban Report, week ending July 7, 2003 Paula Balciunaite (1) Solar activity Activity remained around B4/B5 throughout the week, with 18 C flares and an M3.0 flare ~700 UT July 2, originating in NOAA region 0397. RHESSI has observed at least the peaks of 8 of the C flares, as well as the peak and decay of the M flare: --------------------------------------------------- Date Time (UT) X-Ray Opt Loca- NOAA Begin Max End Class Imp tion Region 30-JUN-03 00:03 00:12 00:18 C6.5 SF S03W48 396 30-JUN-03 02:18 02:24 02:29 C8.0 30-JUN-03 05:11 05:25 05:38 C1.6 30-JUN-03 09:00 09:03 09:08 C2.2 1-JUL-03 17:54 18:02 18:06 C1.4 2-JUL-03 07:06 07:28 07:46 M3.0 1F N13E25 397 3-JUL-03 01:06 01:13 01:17 C1.2 3-JUL-03 05:51 06:02 06:11 C3.8 SF N13E23 397 3-JUL-03 14:49 14:58 15:09 C3.3 SF N04E51 400 --------------------------------------------------- (2) Attenuator state changes A0 -> A1 30-Jun-03 02:21 A1 -> A0 30-Jun-03 02:34 A0 -> A1 30-Jun-03 07:35 A1 -> A0 30-Jun-03 08:11 A0 -> A1 01-Jul-03 17:58 A1 -> A0 01-Jul-03 18:03 A0 -> A1 02-Jul-03 07:10 A1 -> A0 02-Jul-03 08:16 A0 -> A1 03-Jul-03 05:57 A1 -> A0 03-Jul-03 06:06 (3) Memory management SSR level has been steadily decreasing throughout the week, ending at a very low 11.8%. (4) Decimation state changes D2 -> D1 30-Jun-03 02:21 D1 -> D2 30-Jun-03 02:34 D2 -> D1 01-Jul-03 14:49 D1 -> D2 01-Jul-03 21:08 D2 -> D1 02-Jul-03 07:10 D1 -> D2 02-Jul-03 08:16 D2 -> D1 02-Jul-03 11:28 D1 -> D2 03-Jul-03 02:18 D2 -> D1 03-Jul-03 05:57 D1 -> D2 03-Jul-03 06:06 D2 -> D1 03-Jul-03 06:17