NRO Heliograph Tohban's Report for Week 35 (24 August 1998 - 30 August 1998) Tohban : J. Sato 1. Solar Activity Solar activity was decreased compared with previous week. An X-class flare was detected on 08/24 by the NRH. Unfortunately, this flare is only recored during decay phase. Some C-class flares were also detected during 24 - 30. NRH event list of week 34 Start Peak End Dur Max (UT) (UT) (UT) (sec) Cor. 1998-08-24 02:11:16 02:11:17 02:11:19 3 30 1998-08-24 05:09:42 05:09:56 05:11:21 99 108 1998-08-24 05:51:17 05:51:18 05:51:18 1 18 1998-08-24 22:45:23 22:45:25 01:48:29 10986 228 1998-08-24 02:11:16 02:11:17 02:11:19 3 30 1998-08-24 05:09:42 05:09:56 05:11:21 99 108 1998-08-24 05:51:17 05:51:18 05:51:18 1 18 1998-08-24 22:45:23 22:45:25 01:48:29 10986 228 1998-08-29 04:56:54 04:57:01 04:58:48 114 26 1998-08-29 04:56:54 04:57:01 04:58:48 114 26 1998-08-30 04:24:54 04:24:56 04:30:07 313 24 1998-08-30 05:39:37 05:40:42 05:45:19 342 30 1998-08-30 06:19:03 06:20:59 06:26:25 442 28 1998-08-30 22:55:16 22:55:33 23:07:11 715 103 2. Remarkable Events found by NRH X0.0 ? flare at 08/24 22:45 showed long decay in goes plot. 3. Observing log W09 antena was not used during following intervals due to error. 08/27 07:34-09:28 08/28 07:34-09:04 4. Next tohban (week 36) K. Shibasaki