Re: Cosmos 1275 Rk

Richard_G_Hines (rghines1@mindspring.com)
Sun, 27 Dec 1998 18:08:42 -0500

Thanks to those who responded. My observing log does show an observation of
81-53B object (id# 12508) at mag 6.5 on 20-Jun-1998 during an overhead pass
using Traksat. I'll remove the 81-53HE object from my list of sats to check
off.

12508 Cosmos 1275 Db       06/20/98 23:21:26  83    S    N   1005  00:17:24
	*********** Mag 6.5

Richard Hines
Lexington, SC
-------------------------
At 12:10 PM 12/27/98 -0600, you wrote:
>Richard Hines wrote:
>
>>I have been trying to check this object (id# 13807) off my observing list
>>for the past week without much luck.
>
>Jeff Hunt wrote:
>
>>Certainly not on my list of observations ;-) but the sat sit reports
>>list the radar cross section as 0.07.
>
>My observations of the HE object were in 1994 and 1995.
>
>My current "mean" RCS value for this object is 11 square meters.
>
>But apparently Spacecom switched what was the biggest piece of
>this rocket back to being the 81 53B object some time in the last
>year or two.  I am currently away on vacation, so I cannot check
>the last 3 years of the SSR to determine more precisely when
>this occurred.
>
>At any rate, the current RCS for the 81 53B object is 8 square
>meters, so it seems clear to me that the switch has occurred and
>I will change the files to reflect that 81 53B is this object.
>
>Cosmos 1275 r    3.8  0.0  0.0  5.4 d
>1 12508U 81053B   98351.82556851 +.00000054 +00000-0 +40510-4 0 02579
>2 12508 082.9599 104.1512 0038708 014.6156 345.6109 13.75406076886338
>
>Mike McCants
>
>