Re: GSSAP 3 and 4

From: Robert Holdsworth via Seesat-l <seesat-l_at_satobs.org>
Date: Sun, 28 Aug 2016 08:48:24 +1200
Ties in with this?

http://spacenews.com/air-force-sent-gssap-satellite-to-check-on-stalled-muos-5/

Robert
Wainuiomata
New Zealand

On 28 August 2016 at 08:40, Mike McCants via Seesat-l
<seesat-l_at_satobs.org> wrote:
> Scott Tilley has observed a pair of unknowns with similar optical
> characteristics in near-zero inclination geosync orbits to the
> west of the orbital insertion point for the new GSSAP launch.
>
> I have chosen one object as GSSAP 3 and the other as GSSAP 4.
>
> The GSSAP 3 object appears to be stationary with a mean motion
> of 1.0027 revs/day.
>
> The GSSAP 4 object may be moving slowly westward.
>
> Each object was seen by Scott to be slowly varying in brightness from
> reasonably bright to invisible.
>
> The A object was seen on Aug 23, 25, and 27 at about the same
> time as the MUOS 5 payload was passing quite far below it.
>
> The B object was similarly seem on Aug 23 and 27.
>
> They were separated by about 5 minutes of time on Aug. 27.
>
> I speculate that they were "scanning" in some way when Scott
> observed them changing in brightness.
>
> Perhaps they are very faint when not rotating?
>
> Here are my estimated elsets:
>
> GSSAP 3
> 1 41744U 16052A   16239.71177259 0.00000000  00000-0  00000-0 0    07
> 2 41744   0.0040 120.2942 0008000 355.4515   4.5217  1.00274330    01
> GSSAP 4
> 1 41745U 16052B   16239.71428764 0.00000000  00000-0  00000-0 0    08
> 2 41745   0.0190 120.2942 0010000 300.4515  59.5217  1.00104330    03
>
> Of course the choice of which one is 3 and which one is 4 is arbitrary.
>
> Mike McCants
> Austin, TX
>
> _______________________________________________
> Seesat-l mailing list
> http://mailman.satobs.org/mailman/listinfo/seesat-l
_______________________________________________
Seesat-l mailing list
http://mailman.satobs.org/mailman/listinfo/seesat-l
Received on Sat Aug 27 2016 - 15:49:39 UTC

This archive was generated by hypermail 2.3.0 : Sat Aug 27 2016 - 20:49:39 UTC