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: 36,222.2 km
Apogee: 36,382.6 km
Inclination: 13.0 °
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   18227.63204469 -.00000188 +00000-0 +00000-0 0  9991
2 19883 012.9998 013.4436 0018798 253.1600 294.6390 00.98484328279850

Source of the keplerian elements: AFSPC