Re: Bright, fast satellite culminating in the S

From: Björn Gimle via Seesat-l <seesat-l_at_satobs.org>
Date: Thu, 23 Mar 2017 00:15:31 +0100
I
 wasn't home in time today to search for the bright fast object, but before
going to bed I decided to compare H-A predictions with 16330 elset, and in
HeavenSat the modified inttles.tle that I was using in my search.

I am now convinced that it really was USA 179 rocket I saw Mar.21 18:24 UTC
Both sources showed predictions some 10 degrees higher than those that I
noted from HeavenSat yesterday. And I can't figure out the error I might
have made to produce this error.

This elset from inttles Mar.11, with Mean Anomaly increased by 210 degrees
(i.e. decreased by 150 degrees) is a close match to my impression of the
pass.
Expect an error of at least + or - 1 minute/day !

USA 179 Rk +210
1 58391U 04034B   17069.98813047 0.00054474  00000-0  63133-3 0    06
2 58391  57.3244  47.9462 3660075  78.1454 179.9101  8.20501929  1057

From the 16330 elset, my obs was about 22 min early.


--------------------------------------------------------
Björn Gimle, COSPAR 5919
59.2617 N, 18.6169 E, 51 m
Satellite observation formats described:
http://www.satobs.org/position/IODformat.html
---------------------------------------------------------

2017-03-21 21:05 GMT+01:00 Björn Gimle <bjorn.gimle_at_gmail.com>:

> At 18:34 UT 2017-03-21 while imaging to search for #28385 I saw a fast
> satellite that appeared to have culminated in the S.
> When I spotted it, it was close to RA 9:00 Dec +11
> While trying to get it in the camera field I lost it, probably entering
> shadow before Leo.
>
> Prediction for 28385 was to enter shadow near 7:00 +0 degrees.
>
>
> --------------------------------------------------------
> Björn Gimle, COSPAR 5919
> 59.2617 N, 18.6169 E, 51 m
> Satellite observation formats described:
> http://www.satobs.org/position/IODformat.html
> ---------------------------------------------------------
>
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Received on Wed Mar 22 2017 - 23:15:31 UTC

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