I derived the following using observations by myself, Tony Beresford, Russell Eberst, Paul Gabriel, Bjoern Gimle, Jim Nix and others, made during 2001 Sep 09 - 13 UTC: USA 160 r 10.1 3.0 0.0 3.0 v 1 26906U 01040B 01256.37639468 .00000000 00000-0 00000-0 0 01 2 26906 63.4685 286.2661 0149629 187.9740 171.9323 13.43452628 09 Mean residuals are about 0.02 deg. On 2001 Sep 12 UTC, I observed the Centaur and two objects trailing it: 26906 01 040B 2701 E 20010912025807750 17 25 0248554+581477 28 S 26906 01 040B 2701 E 20010912025829940 17 25 0315800+570844 67 S 75101 01 040C 2701 E 20010912030424250 17 25 0348418+563122 48 S 75102 01 040D 2701 E 20010912030440790 17 25 0348779+564557 48 S 75102 01 040D 2701 E 20010912045137770 17 25 1635087+510482 28 S 75102 01 040D 2701 E 20010912045223060 17 25 1602672+590262 18 S Site 2701: 43.68764 N, 79.39243 W, 230 m At 03:04 UTC, 75102 trailed 75101 by 16.54 s, and was consistently fainter, by perhaps 1 magnitude. At 04:51 UTC, I could not see 75101, but 75102 was easily seen. So it appears that the brightness of both objects can vary considerably. At 04:51 UTC, the Centaur appeared to vary regularly in brightness, with a period of perhaps 10 s. I did not make any precise measurements of it on that pass. I observed both payloads briefly on 2001 Sep 13 at 02:17 UTC. The separation between them had grown to 21.34 s. Ted Molczan ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/sat/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Thu Sep 20 2001 - 17:55:53 EDT