United States Air ForceDelta II 6925Space Launch Complex 17A, Cape Canaveral SFS, FL, USA
GPS-2 6
Launched
January 24, 1990
Summary
GPS-2 6 launched on an United States Air Force Delta II 6925 from Space Launch Complex 17A, Cape Canaveral SFS, FL, USA on January 24, 1990. It was United States Air Force's 877th launch, 1st this year and humanity's 3,484th orbital launch attempt. It was the 6th Delta II 6925 flight and the 1st this year. The payload was bound for Medium Earth Orbit (MEO). GPS II-6, one of 3 catalogued objects, reached a 19,678 × 20,118 km orbit inclined 54.8°. 3 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Delta II 6925 · United States Air ForceGlobal Positioning System
- Booster
- No booster details on record.
- Mission
- Navigation · Medium Earth Orbit (MEO)
- Milestone
- 6th Delta II 6925 flight · 1st this yearUnited States Air Force's 877th launch1st this yearhumanity's 3,484th orbital launch attempt8th orbital launch attempt this year
Flight preview
Orbit: as tracked
GPS II-6 · NORAD 20452 · 1990-008 · Space-Track · tracking 1 of 3 objects
Show the numbers for orbit elements
- Object
- NAVSTAR 18 (USA 50)
- Object ID
- 1990-008A
- Epoch
- 1990-01-26 19:14:57 UTC
- Mean motion
- 2.03909979 rev/day
- Eccentricity
- 0.008366
- Inclination
- 54.8392°
- Ascending node
- 261.797°
- Arg. of perigee
- 178.6564°
- Mean anomaly
- 184.482°
- Element set
- 999
- Rev at epoch
- 0
- B*
- 0.000099999
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: MEO.
Catalogued objects
3 catalogued: 1 payload, 2 rocket stages; 1 still in orbit
- GPS II-6 · NORAD 20452 · in orbit
Delta 191 Stage 3 · re-entered September 19, 1994
Delta 191 · re-entered October 11, 2026
Data from J. McDowell, planet4589.org
About this launch
Second generation GPS navigation satellite
Pad

Space Launch Complex 17A, Cape Canaveral SFS, FL, USA
90th launch from Space Launch Complex 17A, 1st this year · 427th from Cape Canaveral SFS, FL, USA
145 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
95 days after the previous launch from this pad
Questions
When did GPS-2 6 launch?
GPS-2 6 launched on January 24, 1990. The time is known to the hour, not the minute.
Where can I watch GPS-2 6?
No webcast is on record for this launch.
What rocket launched GPS-2 6?
Delta II 6925, flown by United States Air Force. Delta II 6925 spec sheet
Where did GPS-2 6 launch from?
Space Launch Complex 17A, Cape Canaveral SFS, FL, USA.
What orbit did GPS-2 6 reach?
GPS II-6, one of 3 catalogued objects, reached a 19,678 × 20,118 km orbit inclined 54.8°.
How many satellites did GPS-2 6 launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).
Which program is GPS-2 6 part of?
Global Positioning System. About Global Positioning System