New geosync flasher Pierre Neirinck has observed mag 5 flashes from Gorizont 23 (1991-46A, 21533) on 1997 May 07. The flash period was 53.47 seconds. On 1997 May 08 I have timed 21 flashes (mag 5 to 6) with my 10x50B: n time 0 21:22:14.38 UTC 1 21:23:07.81 2 21:24:01.31 3 21:24:54.66 4 21:25:48.31 5 21:26:41.83 6 21:27:35.06 13 21:33:49.61 14 21:34:42.91 15 21:35:36.38 16 21:36:29.88 17 21:37:23.30 18 21:38:16.77 26 21:45:24.70 27 21:46:18.23 28 21:47:11.71 40 21:57:53.42 41 21:58:46.78 42 21:59:40.10 43 22:00:33.79 44 22:01:27.09 Flash times are at 1997 May 08: (21:22:14.32 +/- 0.03)UTC + (53.4742 +/- 0.0013)*n Gorizont 23 1 21533U 91046A 97125.51309928 -.00000098 +00000-0 +00000-0 0 09904 2 21533 003.1845 068.1620 0007510 062.6274 297.2878 00.98908836015549 91-46A is drifting with about -5 deg/day (to the west). Rainer r.kracht@elmshorn.netsurf.de 9.6626 deg east long. 53.7695 deg north lat. 9 m above msl