TDRS 4

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TDRS 4 is classified as:

• Geostationary
• Tracking and Data Relay Satellite System
• TV

NORAD ID: 19883
Int'l Code: 1989-021B
Perigee: 36,230.5 km
Apogee: 36,374.8 km
Inclination: 13.1 °
Period: 1,462.2 minutes
Semi major axis: 42673 km
RCS: 20.9264 m² (large)
Launch date: March 13, 1989
Source: United States (US)
Launch site: AIR FORCE EASTERN TEST RANGE (AFETR)

Tracking and communications with space shuttle, other missions.

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1 19883U 89021B   19235.73979814 -.00000182 +00000-0 +00000-0 0  9999
2 19883 013.0539 010.4673 0016915 266.1234 087.0292 00.98483466283525

Source of the keplerian elements: AFSPC