re: Brightening of 17590 (Cosmos 1833)

From: Walter Nissen <dk058_at_cleveland.Freenet.Edu>
Date: Tue, 30 May 1995 04:07:36 -0400
> From: rick@kirchhof.com (Rick Kirchhof)
> Subject: Brightening of 17590 (Cosmos 1833)

> Perhaps this is a large flat surface on the object??  The peak
> was at 3:07:45 UTC on 5/28/95.

Thanks for your report.

This object is said to be a Zenit rocket body, one of the larger objects
in orbit.  When tumbling more rapidly, these are among the most reliably
prominent and visually interesting objects in orbit.  I well remember
watching C* 1980 r when it was in its prime and thinking, "Boy, this junk
sure puts on quite a show".  Sky & Telescope published a photo of such an
object a couple(?) of years ago with an article by Gerald Ouellette (about
C* 1980 r, I think).  Allen Thomson has published some material about the
peculiar orbital evolution of objects in these 71 degree inclined orbits
(note the negative drag terms).

Among these elsets, I'm not sure about 94-74B = Resurs 1-3 r being a
Zenit (truth to tell, they're all just lights in the sky to me), but I can
tell you it is visually prominent.

C* 1980 r   10.4  3.9  0.0  4.6
1 19650U 88102  B 95136.20987559  .00000422  00000-0  21802-3 0  4123
2 19650  70.9937  49.1859 0015370 217.3600 142.6447 14.14885970334419
C* 2263 r   10.4  3.9  0.0  4.6
1 22803U 93059  B 95136.77901454 -.00000251  00000-0 -10301-3 0  4265
2 22803  70.9865 317.9664 0015700  59.8349 300.4322 14.15819409 85985
Unknown
1 23343U 94074B   95132.17500155  .00000069  00000-0  19446-4 0   593
2 23343  98.0211 192.8063 0011648  47.8323 312.3857 14.70559929 27766
C* 2297 r   10.4  3.9  0.0  4.6
1 23405U 94077  B 95122.45811429 -.00000029  00000-0  10000-4 0   868
2 23405  70.9856 274.8106 0002919 309.2928  50.7983 14.14181506 22493

Cheers.
Received on Tue May 30 1995 - 05:52:46 UTC

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