GSSAP 3 and 4

From: Mike McCants via Seesat-l <seesat-l_at_satobs.org>
Date: Sat, 27 Aug 2016 15:40:16 -0500 (CDT)
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
Received on Sat Aug 27 2016 - 15:40:59 UTC

This archive was generated by hypermail 2.3.0 : Sat Aug 27 2016 - 20:40:59 UTC