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ISS / STS-88 Orbital Data

I have posted estimated orbital data for the International Space Station
(ISS) Zarya (FGB) module and the Space Shuttle STS-88 mission on the AMSAT
Shuttle Orbital Information web page at:


If the AMSAT web page is busy, you can use my personal web site as a backup
(under Space Shuttle, Orbital Data).


The Zarya (FGB) is scheduled for launch 1998-NOV-20 06:40 UTC on a Proton
booster from the Baikonour Cosmodrome in Kazakstan.  STS-88 is scheduled
for launch 1998-DEC-03 08:59 UTC from Cape Canaveral, Florida.  The
following are the estimated Keplerian elements in Two-Line Element and
AMSAT format:

Zarya (FGB) 
1 99999U          98324.29166667  .00002895  00000-0  34003-4 0    16
2 99999  51.5910 167.7067 0023097 281.8941 201.6647 15.60448809    18
1 99988U          98337.40496918  .00088240  32308-7  60157-4 0    16
2 99988  51.5986 101.9490 0091367   9.9732 184.4210 16.06870063    17

Satellite: Zarya (FGB) 
Catalog number: 99999
Epoch time:      98324.29166667
Element set:       1
Inclination:       51.5910 deg
RA of node:       167.7067 deg
Eccentricity:    0.0023097
Arg of perigee:   281.8941 deg
Mean anomaly:     201.6647 deg
Mean motion:   15.60448809 rev/day
Decay rate:    2.89541e-05 rev/day^2
Epoch rev:               1
Checksum:              333

Satellite: STS-88      
Catalog number: 99988
Epoch time:      98337.40496918
Element set:       1
Inclination:       51.5986 deg
RA of node:       101.9490 deg
Eccentricity:    0.0091367
Arg of perigee:     9.9732 deg
Mean anomaly:     184.4210 deg
Mean motion:   16.06870063 rev/day
Decay rate:    8.82395e-04 rev/day^2
Epoch rev:               1
Checksum:              346

Note that the "99999" and "99988" catalog numbers are temporary
placeholders.  Both will be assigned permanent catalog numbers and
international designators when they are launched.

The Zarya (FGB) Keplerian elements were estimated from the STS-88
rendezvous (Zarya Grapple) state vector data with epoch time move backward
to 1998-NOV-20 07:00 UTC.  The STS-88 Keplerian elements are from the post
OMS-2 burn state vector.  The estimated Zarya (FGB) Keplerian elements
should be adequate for orbital predictions until official Space Command
TLEs are released by NASA.

If you have any questions or comments about this information, please
contact me at the email address listed below.

Ken Ernandes, N2WWD

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