Optical 20 Jan 2018-recovery USA 186

From: Greg Roberts via Seesat-l <seesat-l_at_satobs.org>
Date: Sat, 20 Jan 2018 22:03:06 +0200
Observations 20 January 2018
-----------------------------------------
Cosatrak 1 (Computerised satellite Tracking System).

Canon 650D DSLR camera - using Nikon 80-200mm telephoto lens
and set on 133.7mm and fixed f/ratio of F/2.8. Field of view
9.39 X 6.27 degrees with image scale 26 arc sec/pixel.
Image at ISO 3200.

The end points of the trail was determined by using SAO DS9 program 
after image solved in Nova.astrometry.net.

1.0 second exposure.

FOR CLASSIFIED.TLE:
---------------------------
28888 05 042A   0435 G 20180120184311370 16 15 0813136-023646 18
28888 05 042A   0435 G 20180120184312370 16 15 0811530-020338 18

NOTES:
--------
(1) Satellite found whilst doing a plane scan for USA 186 based
     on an approximate orbit of a satellite observed by Lafras
     Smit and being suspected of being USA 186.   Mike McCants
     provided the approximate orbit based on the short arc so
     mean motion very suspect but Mike is such an expert the
     satellite was running about 4 minutes early after 8 days
     difference in the observations of Lafras and myself.

Cheers
Greg

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Received on Sat Jan 20 2018 - 14:04:33 UTC

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