United States Air ForceDelta II 6925Space Launch Complex 17A, Cape Canaveral SFS, FL, USA
GPS-2 8
Launched
August 2, 1990
Summary
GPS-2 8 launched on an United States Air Force Delta II 6925 from Space Launch Complex 17A, Cape Canaveral SFS, FL, USA on August 2, 1990. It was United States Air Force's 886th launch, 10th this year and humanity's 3,547th orbital launch attempt. It was the 8th Delta II 6925 flight and the 3rd this year. The payload was bound for Medium Earth Orbit (MEO). GPS II-8, one of 3 catalogued objects, reached a 19,713 × 20,675 km orbit inclined 54.7°. 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
- 8th Delta II 6925 flight · 3rd this yearUnited States Air Force's 886th launch10th this yearhumanity's 3,547th orbital launch attempt71st orbital launch attempt this year
Flight preview
Orbit: as tracked
GPS II-8 · NORAD 20724 · 1990-068 · Space-Track · tracking 1 of 3 objects
Show the numbers for orbit elements
- Object
- NAVSTAR 20 (USA 63)
- Object ID
- 1990-068A
- Epoch
- 1990-08-04 02:52:59 UTC
- Mean motion
- 2.00512423 rev/day
- Eccentricity
- 0.0181158
- Inclination
- 54.671°
- Ascending node
- 194.302°
- Arg. of perigee
- 116.211°
- Mean anomaly
- 265.221°
- 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-8 · NORAD 20724 · in orbit
Delta 197 · re-entered August 15, 1990
Delta 197 Stage 3 · re-entered March 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
93rd launch from Space Launch Complex 17A, 4th this year · 437th from Cape Canaveral SFS, FL, USA
145 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
61 days after the previous launch from this pad
Questions
When did GPS-2 8 launch?
GPS-2 8 launched on August 2, 1990. The time is known to the hour, not the minute.
Where can I watch GPS-2 8?
No webcast is on record for this launch.
What rocket launched GPS-2 8?
Delta II 6925, flown by United States Air Force. Delta II 6925 spec sheet
Where did GPS-2 8 launch from?
Space Launch Complex 17A, Cape Canaveral SFS, FL, USA.
What orbit did GPS-2 8 reach?
GPS II-8, one of 3 catalogued objects, reached a 19,713 × 20,675 km orbit inclined 54.7°.
How many satellites did GPS-2 8 launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).
Which program is GPS-2 8 part of?
Global Positioning System. About Global Positioning System