Contrary to my analysis yesterday, Tony Beresford's latest observations (Jan 21
UTC) reveal that the reboost occurred at perigee. Here are accurate elements:
USA 129 15.0 4.0 0.0 5.3 v
1 24680U 96072A 06021.49224669 .00006922 00000-0 90594-4 0 08
2 24680 97.9382 86.8701 0527000 174.5102 186.2215 14.73501450 09
The manoeuvre occurred on 2006 Jan 19, near 14:59:22 UTC.
I have reviewed all of the USA 129 (96072A / 24680) reboosts during the life of
USA 161 (01044A / 26943) for which I have orbital elements. The results are
summarized below:
01044A lag
96072A boost UTC Lat h:mm:ss
--------------------------- ----------
2002 Apr 04 16:27 00.17 S +2:41:41
2002 Jun 27 15:09 81.45 N +2:40:31
2002 Sep 12 16:35 14.52 S +2:45:44
2003 Jan 17 14:03 39.72 N +2:39:00
2003 Mar 27 15:46 81.39 S +2:46:00
2003 Jun 05 18:44 42.13 N +2:40:39
2003 Aug 07 13:58 16.61 S +2:37:09
2003 Oct 16 14:33 31.89 S +2:48:44
2003 Dec 18 12:54 57.99 N +2:42:16
2004 Feb 12 17:34 60.42 N +2:44:06
2004 Mar 18 17:43 06.00 S +2:42:31
2004 Mar 23 14:16 09.74 N +2:42:16
2004 Jun 17 13:55 72.28 S +2:46:57
2004 Aug 26 15:21 29.90 N +2:40:19
2004 Nov 18 14:43 61.63 N +2:24:36
2005 Feb 03 16:49 49.42 S +2:36:38
2005 May 05 15:05 62.09 S +2:27:33
2005 Jul 21 15:14 49.20 N +2:16:20
2005 Oct 13 18:04 41.00 N +2:14:30
2006 Jan 19 14:59 00.49 N +2:17:32
The reboost times ranged between 12:54 and 18:44 UTC, about a 6 hour span, that
seems to fit nicely into an 8 h workday.
Ted Molczan
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