Updated 99028A elements

Ted Molczan (molczan@home.com)
Tue, 8 Jun 1999 08:47:32 -0400

Based on the obs of James Nix on 8 June, I have tweaked several of the
elements, resulting in the following:

USA 144         15.0  4.0  0.0  4.2 d
1 25744U 99028  A 99155.48763000  .00090000  00000-0  10662-2 0    06
2 25744  63.4100  55.4400 0011000 350.0000  10.0000 15.60800000    07

The 8.5 s flash period is interesting. Is it spin-stabilized, or merely
tumbling? What caused the 9 pieces of debris catalogued soon after launch?

The SDS 2 satellites: 89061B, 92086B, 96038A, all had 1 s flash periods, and
none produced debris while in their LEO parking orbits.

I believe it would be worthwhile to continue observing this object. I
suggest adding colour to the list of characteristics to be observed.

Ted Molczan