Re: Resurs O1 Elset

Ron Lee (ronlee@pcisys.net)
Tue, 23 Jun 1998 20:19:03 -0600

Resurs, 5:48UT, 24 Jun 98
1 99999U 980xxA   98175.24166666 -.00000044  00000-0  00000+0 0    00
2 99999  98.5000 238.5000 0000827  90.0000  40.0000 14.20000000    04

I cannot verify the usefulness of this elset other than from my limited
experience it seems reasonable. West coast US observers MAY have a chance to
see it on the first rev but I did not verify sunlight conditions.

Ron Lee





>I doubt if elsets exist but one can try to generate these assuming
>launch pad at 46N, 68E, launch azimuth of 192 deg (southern
>path - BTW, it overflies the city of Baikonur a minute after liftoff).
>The final orbit of 98.5 deg, 835 km is to be achieved half-orbit
>after launch. Launch time is June 24, 05:48 UTC.
>
>I've got some doubts on orbital height: previous launches went to
>98 deg, 650 km. But the 835 km figure is what I was told.
>
>On Dec 28, 1995 at 06:45 UTC, Indian IRS-1C was launched from 
>Baikonur into similar, slightly lower orbit. The current elset is
>
>IRS-1C           3.0  2.0  2.0  6.3 d
>1 23751U 95072A   98169.24136971 -.00000044  00000-0  00000+0 0  3359
>2 23751  98.6880 243.7340 0000827  87.6665 272.4616 14.21636554128306
>
>IRS-1C used another vehicle, Molniya-M, but if you take one of the
>first elsets for IRS and adapts it for the date and time of Resurs O1 #4,
>you can probably come to a predictive elset, at least for the first orbit.
Orbit 1
>goes, I believe, over Madagascar, the Antarctic Peninsula, the Pacific,
>east of Hawaii to the western tip of Alaska/Aleutian Islands. It probably
>can be seen from California as well but I haven't made any computations
>on shadow.
>
>The five payloads other than Resurs O1 #4 are minor ones but
>probably can be seen. Happy observing!
>
>Igor
>
>
>