Re: USA 129 SATOBS

Björn Gimle (b_gimle@algonet.se)
Wed, 31 Mar 1999 08:59:51 +0200

>I did not run a differential correction; instead I varied the mean motion to
>produce a close fit to the observations. Also, I added a bstar decay term
>for the benefit of SGP4 users; however, at this time both decay terms are
>guesses.
>
They are still guesses, but actually ELCOR+VEC2TLE quickly converged to
an elset very similar to USA 116. Residuals .02/.03/.02/.06/.05 degrees :

     *Apogee Height:     969 km           Semimajor Axis:    7018.3223  km
     Perigee Height:     312 km           Orbital Period:      97.4387 min

     *Note: Heights are Relative to Mean Equatorial Earth Radius (6378 km)


                       Ascending Node Two-Line Elements:

USA 129         15.0  3.0  0.0  5.1 v
1 24680U 96072  A 99088.87921223  .00013296  00000-0  25676-3 0    05
2 24680  98.0955 152.2938 0464212 351.9544   7.4395 14.78751408    01
3 99 03 29 21 21 35.71  01 30.57 +58.8431 1950 1
3 99 03 29 21 22 01.41  00 42.42 +54.9817 1950 1
5 99 03 30 20 04 20.54  13 49.12 +21.2808 2000 1
5 99 03 30 20 04 58.26  14 34.77 +32.4672 2000 1
5 99 03 30 20 05 58.43  16 19.55 +46.4217 2000 1
0


-- bjorn@tt-tech.se (office)  b_gimle@algonet.se (home)      --
--                            http://www.algonet.se/~b_gimle --
-- COSPAR 5918, 59.298 N, 18.104 E, 55 m                     --
-- SeeSat-L / Visual Satellite Observer Home Page found at   --
-- http://www.satellite.eu.org/satintro.html       --