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N2WWD  > SAREX    15.01.97 16:41l 62 Lines 1916 Bytes #-10671 (0) @ AMSAT
BID : 4456_KC2FD
Read: GUEST OE7FMI
Subj: STS-81 Rev 40 Orbital Data
Path: DB0AAB<DB0KCP<DB0KFB<DB0CZ<DB0GV<DB0SIF<DB0AIS<DB0NDK<DB0ACH<DB0ACC<
      DB0OBK<DB0SM<PI8DAZ<PI8GCB<PI8WFL<PI8MBQ<PI8VNW<OH7RBA<OH1AI<OH1RBD<
      OH2RBJ<OH2RBI<OH3RBR<PU3DTA<N2MEG<KB2VLX<N2BQF<KC2FD
Sent: 970115/0001Z @:KC2FD.#NLI.NY.USA.NA #:4456 [Coram, Ny] FBB7.00a $:4456_KC
From: N2WWD@KC2FD.#NLI.NY.USA.NA
To  : SAREX@AMSAT

Below is the current State Vector and Keplerian Elements for STS-81.
The vector data comes from NASA; the orbital parameters were computed
from the vector.  Hourly vector updates are available from NASA GSFC
OIG RAID RBBS at telnet: oig1.gsfc.nasa.gov (UserID = oig /
Password = goddard1).

This file may be read by VEC2TLE version 9648 to update your
Keplerian Elements text file.

Vector format = 117
Satellite Name:         STS-81
Catalog Number:         24711  97001A
Epoch Date/Time:        97014.83468171300
                        01/14/1997  20:01:56.500 UTC
EFG E:                   -3838058.0000000 ft
    F:                   19849573.0000000 ft
    G:                   8199482.00000000 ft
    Edot:                -13985.719999999 ft/s
    Fdot:                -9850.6700000000 ft/s
    Gdot:                17605.0900000000 ft/s
ndot/2 (drag):              0.00002716718 rev/day^2
nddt/6:                       0.00000E+00 rev/day^3
Bstar:                        9.35450E-06 1/Earth Radii
Elset #:                               11
Rev @ Epoch:               40.07809767949

Launch was 12-JAN-97 / 09:27:23.056 UTC

The following Keplerian elements were computed by VEC2TLE from this
vector using a 0.1 drag multiplier:

STS-81
1 24711U 97001A   97014.83468171  .00002717  00000-0  93545-5 0   114
2 24711  51.6501 137.0186 0094241 352.5675  35.5279 15.81811681   409

Satellite: STS-81
Catalog number: 24711
Epoch time:      97014.83468171
Element set:      11
Inclination:       51.6501 deg
RA of node:       137.0186 deg
Eccentricity:    0.0094241
Arg of perigee:   352.5675 deg
Mean anomaly:      35.5279 deg
Mean motion:   15.81811681 rev/day
Decay rate:    2.71672e-05 rev/day^2
Epoch rev:              40
Checksum:              291

VEC2TLE may be downloaded from:

http://www.amsat.org/amsat/sarex/orbit.html

Ken Ernandes
n2wwd@amsat.org




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