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STEX

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STEX is classified as:


NORAD ID: 25489
Int'l Code: 1998-055A
Perigee: 729.9 km
Apogee: 744.2 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   19109.92050660 +.00000087 +00000-0 +17469-4 0  9999
2 25489 084.9810 094.3840 0010015 018.9885 341.1688 14.48698115084486
Source of the keplerian elements: McCants