80-008B tumbling? plus a couple of other items

Ed Cannon (ecannon@mail.utexas.edu)
Sat, 22 Mar 1997 03:22:20 -0600

Friday morning (10:57 UT), I observed 80-008B (11683, Cosmos 1154 Rk) for
about a minute, and it really seemed to me that it was tumbling with a
period of a few seconds. I'm sorry that I don't have any more specifics.

Friday evening we had a very good (mag. 2.0) pass of the fast flasher 96-51B
(24298, Cosmos 2333 Rk), and Mike McCants timed its period at 0.855 seconds.
Several people out there observing Hale-Bopp saw it as well.  Several of us
also saw a bright meteor, est. mag. -2.5!  (I've found that one of the best
collateral benefits of satellite watching is seeing meteors!)

Just wondering -- How much longer will Cosmos 2053 (20389, 89-100A) stay in
orbit?
I noticed its high mean motion, and in the five elsets I just got the mean
motion is steadily increasing.  This is the object that Sue Worden and I
observed to flash a brilliant blue-white color for 30 seconds or more a few
months ago.  A prediction next week has its orbit at an altitude of 317 km
(198 miles).

SATNO = 20389
Element set number = 1
1 20389U 89100A   97078.04713189  .00045189  00000-0  18790-3 0  5209
2 20389  73.4996 273.6702 0001708 177.6725 182.4510 15.85521550408145
Element set number = 2
1 20389U 89100A   97078.99358446 +.00044494 +00000-0 +18430-3 0 05258
2 20389 073.5012 271.4113 0001453 187.4865 172.6266 15.85604166408298
Element set number = 3
1 20389U 89100A   97079.56143592  .00042933  00000-0  17751-3 0  5213
2 20389  73.5018 270.0550 0001578 187.2994 172.8134 15.85648668408384
Element set number = 4
1 20389U 89100A   97080.00308593 +.00043140 +00000-0 +17803-3 0 05239
2 20389 073.5016 269.0003 0001567 185.5160 174.6041 15.85687040408459
Element set number = 5
1 20389U 89100A   97080.57090983  .00040938  00000-0  16869-3 0  5224
2 20389  73.5027 267.6439 0001372 180.7518 179.3613 15.85727331408541

Ed Cannon
ecannon@mail.utexas.edu
Austin, Texas, USA
30.308N, 97.928W