USA 129 Jan 30 2014

From: Greg Roberts <grr_at_telkomsa.net>
Date: Sun, 2 Feb 2014 09:55:16 +0200
Mainly for Ted :

I checked my observations for the two periods I looked for USA 129 on the 30th 
January 2014.
The field of view was 12 x 9 degrees so I had approximately 4 to 4.5 degrees 
"spare" on either
side of USA 129 predicted position

USA 129 prediction : 19h27m33s UT az 140.0  el 14.7    --- nil seen
         1st boost orbit   19h32m42s UT az 140.0  el 17.6    --- nil seen
        2nd boost orbit   19h36m48s UT az 140.0  el 20.7

       I observed at az 140.0 el 14.7 from 19h 27m and should have seen 
something if in 1st boost
       orbit but did not wait long enough for 2nd boost orbit so not that 
conclusive.....
       Anyway would not have seen boost orbit 2 as would have probably been 
outside field
       of view.

2nd pass:

USA 129 prediction: 21h03m47s UT az 228.0 el 22.4  --- nil seen
         1st boost orbit  21h08m37s UT az 228    el 20     --- nil seen
        2nd boost orbit  21h12m26s UT az 228    el 18.5

        I observed az 228.0 el 22.4 from 20h59m35s to 21h11m35s UT and saw 
nothing.

        So again not too conclusive - nothing seen in 1st boost orbit but did 
not wait
        long enough for boost orbit #2, but, as in first pass, boost orbit #2 
would have
        probably been outside the field of view as well.

Boost orbit #3 was a long way away from either so obviously not looked for or 
seen.

So, at the moment it looks like USA 129 not in original orbit, nor possibly in 
boost orbit
no 1 -  so possibily still in boost orbit #2 or #3 not observed which I will do
tonight if clear.

Cheers
Greg 

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Received on Sun Feb 02 2014 - 07:57:01 UTC

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