Re: Bright unid = IGS 8r I assume

From: C. Bassa via Seesat-l <seesat-l_at_satobs.org>
Date: Thu, 3 Jul 2014 14:07:52 +0200
Hi Kevin, Leo,

This is indeed IGS 8r [39063/13002C]. These are measurements from Kevin's video:
39063 13 002C   1775 G 20140703072524140 17 25 2002676+080233 37 S
39063 13 002C   1775 G 20140703072524757 17 25 2001974+083024 37 S
39063 13 002C   1775 G 20140703072525758 17 25 2000582+091423 37 S
39063 13 002C   1775 G 20140703072526759 17 25 1959149+095874 37 S
39063 13 002C   1775 G 20140703072527760 17 25 1957706+104403 37 S
39063 13 002C   1775 G 20140703072528444 17 25 1956674+111471 37 S

Leo also sent me observations from the night of July 1st of what he
believed was IGS 8r:
39063 13 002C   4172 G 20140701012145971 17 25 2336702+165996 37 S
39063 13 002C   4172 G 20140701012147179 17 25 2337976+174231 37 S
39063 13 002C   4172 G 20140701012148841 17 25 2339779+184142 37 S
39063 13 002C   4172 G 20140701012150777 17 25 2341961+195165 37 S
39063 13 002C   4172 G 20140701012152485 17 25 2343967+205495 37 S
39063 13 002C   4172 G 20140701012153715 17 25 2345451+214098 37 S
39063 13 002C   4172 G 20140701012154802 17 25 2346954+222223 37 S
39063 13 002C   4172 G 20140701012155800 17 25 2348220+230060 37 S

Both arcs did not match the 30 odd day old elements of the IGS 8r,
possibly because they were created from a very short arc (those of
Marco and Bjorn from May). Fitting these arcs gives me this orbit,
taking a guess for the drag.
1 39063U 13002C   14184.30902778  .00000000  00000-0  50000-4 0    03
2 39063  97.4485 322.1368 0041684  85.0339 316.2885 15.53789508    00
# 20140701.06-20140703.31, 14 measurements, 0.017 deg rms

Regards,
    Cees
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Received on Thu Jul 03 2014 - 07:08:46 UTC

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