Re: UNID 20.04./20:31 UTC

Björn Gimle (b_gimle@algonet.se)
Thu, 22 Apr 1999 07:06:21 +0200

>ERS 2
>1 23560U 95021  A 99104.20866280  .00000226  00000-0  10000-3 0  6977
>2 23560  98.5489 179.4510 0000936  67.8084 292.3205 14.32247536208155
>
>however, it is about 2 minutes late and comes out of the shadow instead of
>disappearing into it. The track fits, though.
>

There is no way you could have a S-N satellite entering shadow this time
of the year.
You would have Resurs 1-4 Rk 98-43 G 4 degrees above, trailing by 24 s.
or close to 10 degrees. Culmination ranges are 933/936 km, so speeds
are close. But Resurs is predicted brighter than ERS (3,4/5.6)
Could your time be wrong ??

Björn