hello, just before some clouds moved in this evening (Feb 13) I observed Superbird = 89- 41 A = 20040 for about 8 minutes (till 18h14m UT). It was flashing with maxima between +8 and +10 or so. The average time between the flashes was 23.147 +- 0.01 seconds. At Jan 29 I measured a period of 23.120 so the period seems to be going up slowly again after the rotation accelerated a little bit on its way between America and Europe : > Rob Matson: > 89- 41 A 98-09-30 03:25:32.6 RM 23.127 23.12737 +/- .00005 > 89- 41 A 98-11-05 04:16:48.3 RM 219.9 0.1 23.149 N=9.5, mag +3->inv > 29 Jan 1999 : 23.120 (+- 0.002) seconds. regards, Kurt Jonckheere (kjon@mail.dma.be) Please send your observations of flashing satellites to : ppas@lists.satellite.eu.org.