4/29 (UTC) obs

ROB MATSON (ROBERT.D.MATSON@cpmx.saic.com)
29 Apr 1998 13:14:18 -0800

Hi All,

Igor wrote that he observed USA 86 on time April 28th, but that his
observation on the 27th came 48 seconds early (leading him to
assume he had probably mis-ID'd the sat on the 27th).  For what
it's worth, I too observed USA 86 last night (first time!) as it came
out of shadow near Ursa Minor at 4/29 5:33:40 UTC.  Wasn't much
to look at at mag 6, but it was on time.

Also observed NOAA 7 winking along with around a 2-second period,
Cosmos 2344 (mag 6), Cosmos 1607 (mag 5.5), Globalstar FM4 (mag
5.5 -- 1 magnitude brighter than expected), Superbird A (mag 2.5 flashes)
and the Pacific GEO flasher (mag 6.5).  The standard magnitude for the
Globalstar sats is 6.0 in the MOLCZAN-format.  If anyone else has
observed these to be brighter than predicted, we might want to bump
up the standard magnitude a notch.  I'm setting mine at 5.0 for now to
see how that pans out.

The Pacific GEO flasher was about 30 seconds early using this TLE
below.  --Rob

Pacific GEO      6.0  0.0  0.0  5.5 d
1 98001U          98110.98937556  .00000000  00000-0  00000+0 0    01
2 98001   3.8900  59.6933 0001000  78.6119 281.3881  1.00250200    09