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: 36,232.2 km
Apogee: 36,374.1 km
Inclination: 13.1 °
Period: 1,462.2 minutes
Semi major axis: 42674 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   20293.46189326 -.00000078 +00000-0 +00000-0 0  9990
2 19883 013.0556 007.3567 0016630 274.8434 193.9957 00.98481690287675

Source of the keplerian elements: AFSPC