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Updated: STS-93 Nominal Orbital Data

The nominal Keplerian elements for STS-93 were computed using the wrong
launch date and time.  The corrected Keplerian data is in the updated
message below

Below is the current State Vector and Keplerian Elements for
STS-93.  The vector data comes from NASA; the Keplerian Elements
were computed from the vector.

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

Vector format = 10117
Satellite Name:         STS-93 OMS-2
Catalog Number:         99993
Epoch MET:                  0.03008908600
                           0/00:43:19.697 MET
EFG E:                   9596533.77336489 ft
    F:                   17258525.1300330 ft
    G:                   -9399732.6040707 ft
    Edot:                -21545.358129498 ft/s
    Fdot:                9134.41196213600 ft/s
    Gdot:                -5217.4891506060 ft/s
ndot/2 (drag):              0.00018250050 rev/day^2
nddt/6:                       1.39345E-09 rev/day^3
Bstar:                        4.42562E-05 1/Earth Radii
Elset #:                                1
Rev @ Epoch:                1.67900900186

Launch scheduled: 1999-JUL-20 0436 UTC

Note that 99993 is a temporary Catalog Number.  A permanent Catalog
Number and International Designator will be assigned when STS-93 is

The following Keplerian elements were computed by VEC2TLE from this
vector, using a 0.5 drag multiplier:

STS-93 OMS-2
1 99993U          99201.22175576  .00018250  13934-8  44256-4 0    18
2 99993  28.4662 196.8387 0003191 302.7331 301.7244 15.95038814    10

Satellite: STS-93 OMS-2
Catalog number: 99993
Epoch time:      99201.22175576
Element set:       1
Inclination:       28.4662 deg
RA of node:       196.8387 deg
Eccentricity:    0.0003191
Arg of perigee:   302.7331 deg
Mean anomaly:     301.7244 deg
Mean motion:   15.95038814 rev/day
Decay rate:    1.82501e-04 rev/day^2
Epoch rev:               1
Checksum:              305

VEC2TLE may be downloaded from <http://www.mindspring.com/~n2wwd>.

Ken Ernandes

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