GPS · Navigation
NAVSTAR 20 (USA 63)
NonoperationalNavigationMEONORAD 20724
NAVSTAR 20 (USA 63) is a U.S. Space Force navigation satellite, part of the GPS constellation, launched on August 2, 1990 into MEO.
Launch
- Launch date
- August 2, 1990 at 05:39 AM UTC
- Launch site
- Cape Canaveral SFS, USA
- Launched by
- Delta II 6925 →
- Operator
- United States Air Force
- Mission
- GPS-2 8
- Launch record
- View full launch →
Orbit
- Orbit regime
- MEO
- Apoapsis
- 21,536 km
- Periapsis
- 21,331 km
- Inclination
- 54.93°
- Orbital period
- 769.29 min
Spacecraft
- Operator
- U.S. Space Force
- Manufacturer
- Lockheed Martin
- Users
- Government/Military
- Launch mass
- 836.47 kg
- Design lifetime
- 15 years
- Dimensions
- 2.4 × 1.8 × 1.8 m
- Detailed purpose
- Navigation
Identity
- COSPAR (Int'l)
- 1990-068A
- NORAD catalog №
- 20724
- Object type
- Payload
- Owner / operator
United States- Constellation
- GPS
- Radar cross-section
- 2.5892 m²
- Status
- Nonoperational
End of mission
- Fate
- No longer operational — remains in orbit as inactive.
- Final status
- Nonoperational
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