Re: LB Obs 2019 Jun 28-29 night

From: Mike McCants via Seesat-l <seesat-l_at_satobs.org>
Date: Sat, 29 Jun 2019 05:34:01 -0500 (CDT)
Leo Barhorst noted that USA 276 has maneuvered.

>42689 17 022A was imaged some 61 sec late on 3 day old TLE.

Here are are pre-maneuver and post-maneuver elsets:

1 42689U 17022A   19176.91595239 0.00000000  00000-0  00000-0 0    01
2 42689  50.0027 165.8380 0014198 139.3071 220.7258 15.57984077    02

1 42689U 17022A   19179.93089930 0.00000000  00000-0  00000-0 0    02
2 42689  49.9990 150.1274 0013361 145.5264 214.5674 15.57709079    01

Leo's observations on June 25 at 22:22 UT are a good fit
to both the previous elset and the new elset.  So the small
change in mean motion must have occurred about that time.

Mike McCants

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Received on Sat Jun 29 2019 - 05:34:48 UTC

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