Thanks ! Using Rob Matson's axis for Feb-Mar 2000 and his observation below my program finds a precession of 2.03 h/y. Rob also said: ... Flashes are also visible on the half-period, indicating reflections from the back side of one of the panels. Using measurements from myself, Ed Cannon, Mike McCants and Don Gardner, I've come up with a spin axis of: R.A. 14.6809 hours, Dec +62.8945, cone angle 86.35 degrees. ... To me, the half-period would indicate that the cone angle is closer to 90 (except in rare circumstances), so there may be an error of around 7 degrees, + the uncertainty in precession, / sin (angle between track and flash path). (Is RB Russ Besson ? in the UK ? - I hadn't time to check) If my computations are correct in current haste, I find flashes on 2002-09-10 near: RA 23:30 Dec.-10 for Ed Cannon (after shadow exit) RA 22:10 Dec.-11 for Rob Matson (at shadow entry) ----- Original Message ----- ... I just found these in PPAS: 88- 98 A 99-08-17 04:37 RB 4 29.24 mag max +2 88- 98 A 99-08-18 04:52 RB 117.2 4 29.29 mag max +2 88- 98 A 99-08-22 05:33 SDL 59.2 1.0 4 29.60 88- 98 A 99-08-24 05:55 SDL 237.8 0.5 16 29.730 88- 98 A 99-08-25 06:10 SDL 477.0 0.5 32 29.814 88- 98 A 99-08-25 06:13 RM 730.2 .05 29.804 P=24.5,mag +2->inv ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Sat Aug 31 2002 - 11:30:36 EDT