Flash Periods of 96-38B I observed 96-38B again on July 13 at 21:24 UTC with FP = 1.381 +/- 0.007 sec. Observations so far in PPAS format: 96- 38 B 96-07-04 02:18 OO 10 96- 38 B 96-07-04 21:57 PN 1.5 96- 38 B 96-07-04 21:59:00 RK 67.3 0.3 49 1.37 half period 96- 38 B 96-07-04 22:03 IL 4 +/- 1 96- 38 B 96-07-05 07:07 TM 3 96- 38 B 96-07-05 20:35:30 IL 3 96- 38 B 96-07-06 20:42:29 IL 2.75 +/- 0.25 96- 38 B 96-07-06 22:10 PN 2.17 +/- 0.3 96- 38 B 96-07-06 22:12 TC 4.4 full period 96- 38 B 96-07-07 22:19 LB 76.6 40 1.91 96- 38 B 96-07-08 20:56 IL 1 96- 38 B 96-07-08 22:25:39 HS 2.5 96- 38 B 96-07-09 05:56 WC 14.8 10 1.48 96- 38 B 96-07-09 21:02 IL 1 96- 38 B 96-07-11 21:11:58 RK 36.7 0.1 25 1.47 mag 0 to inv 96- 38 B 96-07-13 21:24:23 RK 41.4 0.2 30 1.38 HS Hermann Schnitzler IL Igor Lissov LB Leo Barhorst OO Ohio observer RK Rainer Kracht TC Tristan Cools TM Ted Molczan WC Western Canada observer Using only FP's with tenths of seconds I get: 96- 38 B 96-07-04 21:57 PN 1.5 96- 38 B 96-07-04 21:59:00 RK 67.3 0.3 49 1.37 half period 96- 38 B 96-07-06 20:42:29 IL 2.75 +/- 0.25 96- 38 B 96-07-06 22:10 PN 2.17 +/- 0.3 96- 38 B 96-07-06 22:12 TC 4.4 full period 96- 38 B 96-07-07 22:19 LB 76.6 40 1.91 96- 38 B 96-07-08 22:25:39 HS 2.5 96- 38 B 96-07-09 05:56 WC 14.8 10 1.48 96- 38 B 96-07-11 21:11:58 RK 36.7 0.1 25 1.47 mag 0 to inv 96- 38 B 96-07-13 21:24:23 RK 41.4 0.2 30 1.38 At least three flash periods are visible: 2.75 seconds on July 04/06/13 4.4 seconds on July 06 2.95? seconds on July 9/11 (if 1.48/1.47 is half period) This flash behaviour reminds me of Halley's comet with its combination of a 7.1 day rotation and a 3.7 day precession period. Perhaps the spin axis of 96-38B is rapidly precessing. Rainer Kracht 1996 July 14 R.Kracht@t-online.de +9.6626E, +53.7695N, 9m