Navigation
NAVSTAR 46 (USA 145)
Backup / standbyNavigationMEO
Broadcasts precise timing/positioning signals for global navigation (GNSS).
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Launch
- Launch date
- October 7, 1999 at 12:51 PM UTC
- Launch site
- Cape Canaveral SFS, USA
- Launched by
- Delta II 7925-9.5 →
- Operator
- United States Air Force
- Mission
- GPS IIR-3
- Launch record
- View full launch →
Orbit
- Orbit regime
- MEO
- Apoapsis
- 20,466 km
- Periapsis
- 19,899 km
- Inclination
- 51.47°
- Orbital period
- 717.98 min
Spacecraft
- Operator
- DoD/US Air Force
- Manufacturer
- Lockheed Martin
- Users
- Military/Commercial
- Launch mass
- 2,217 kg
- Dry mass
- 980 kg
- Power
- 1,136 W
- Design lifetime
- 10 years
Identity
- COSPAR (Int'l)
- 1999-055A
- NORAD catalog №
- 25933
- Object type
- Payload
- Owner / operator
United States- Radar cross-section
- 3.981 m²
- Status
- Backup / standby