United States Air ForceDelta II 6925Space Launch Complex 17A, Cape Canaveral SFS, FL, USA
GPS-2 9
Launched
October 1, 1990
Summary
GPS-2 9 launched on an United States Air Force Delta II 6925 from Space Launch Complex 17A, Cape Canaveral SFS, FL, USA on October 1, 1990. It was United States Air Force's 888th launch, 12th this year and humanity's 3,568th orbital launch attempt. It was the 10th Delta II 6925 flight and the 5th this year. The payload was bound for Medium Earth Orbit (MEO). GPS II-9, one of 3 catalogued objects, reached a 172 × 20,417 km orbit inclined 37.6°. 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
- 10th Delta II 6925 flight · 5th this yearUnited States Air Force's 888th launch12th this yearhumanity's 3,568th orbital launch attempt92nd orbital launch attempt this year
Flight preview
Orbit: as tracked
GPS II-9 · NORAD 20830 · 1990-088 · Space-Track · tracking 1 of 3 objects
Show the numbers for orbit elements
- Object
- NAVSTAR 21 (USA 64)
- Object ID
- 1990-088A
- Epoch
- 1990-10-02 06:15:05 UTC
- Mean motion
- 4.03536823 rev/day
- Eccentricity
- 0.6074012
- Inclination
- 37.6413°
- Ascending node
- 129.6724°
- Arg. of perigee
- 199.4843°
- Mean anomaly
- 120.7794°
- Element set
- 999
- Rev at epoch
- 2
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: MEO. Ascent drawn from padside's representative profile.
Catalogued objects
3 catalogued: 1 payload, 2 rocket stages; 1 still in orbit
- GPS II-9 · NORAD 20830 · in orbit
Delta 199 · re-entered October 10, 1990
Delta 199 Stage 3 · re-entered June 18, 1991
Data from J. McDowell, planet4589.org
About this launch
Second generation GPS navigation satellite
Pad

Space Launch Complex 17A, Cape Canaveral SFS, FL, USA
94th launch from Space Launch Complex 17A, 5th this year · 439th from Cape Canaveral SFS, FL, USA
145 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
60 days after the previous launch from this pad
Questions
When did GPS-2 9 launch?
GPS-2 9 launched on October 1, 1990. The time is known to the hour, not the minute.
Where can I watch GPS-2 9?
No webcast is on record for this launch.
What rocket launched GPS-2 9?
Delta II 6925, flown by United States Air Force. Delta II 6925 spec sheet
Where did GPS-2 9 launch from?
Space Launch Complex 17A, Cape Canaveral SFS, FL, USA.
What orbit did GPS-2 9 reach?
GPS II-9, one of 3 catalogued objects, reached a 172 × 20,417 km orbit inclined 37.6°.
How many satellites did GPS-2 9 launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).
Which program is GPS-2 9 part of?
Global Positioning System. About Global Positioning System