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STEX

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STEX is classified as:


NORAD ID: 25489
Int'l Code: 1998-055A
Perigee: 728.9 km
Apogee: 745.2 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   19078.35507837 +.00000117 +00000-0 +25426-4 0  9990
2 25489 084.9811 113.1870 0011513 107.0571 253.1892 14.48693894079916
Source of the keplerian elements: McCants