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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: 743.8 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   19053.76570983 +.00000118 +00000-0 +25776-4 0  9999
2 25489 084.9851 127.8271 0009527 178.5293 181.5938 14.48690269076356
Source of the keplerian elements: McCants