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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: 743.9 km
Inclination: 85.0 °
Period: 99.4 minutes
Semi major axis: 7107 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   20024.79188437  .00000094  00000-0  19243-4 0  9996
2 25489  84.9847 287.7642 0009858 158.5687 201.5930 14.48739724125317
Source of the keplerian elements: McCants