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STEX

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STEX is classified as:


NORAD ID: 25489
Int'l Code: 1998-055A
Perigee: 730.3 km
Apogee: 744.5 km
Inclination: 85.0 °
Period: 99.4 minutes
Semi major axis: 7108 km
RCS: Unknown
Launch date: October 3, 1998
Source: United States (US)
Launch site: AIR FORCE WESTERN TEST RANGE (AFWTR)

Ultra-High Frequency (UHF) communications and Super-High Frequency (SHF) antijam command and broadcast capabilities through four pairs of geosynchronous satellites and one spare; tactical application.
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NASA's NSSDC Master Catalog

Two Line Element Set (TLE):
1 25489U 98055A   15271.85594729 0.00000600  00000-0  15981-3 0    06
2 25489  84.9825 147.0087 0010000 306.5317  53.4682 14.48576876    03
Source of the keplerian elements: McCants