United States Air ForceAtlas F/SVSSpace Launch Complex 3E, Vandenberg SFB, CA, USA
Navstar 4
Launched
December 11, 1978
Summary
Navstar 4 launched on an United States Air Force Atlas F/SVS from Space Launch Complex 3E, Vandenberg SFB, CA, USA on December 11, 1978. It was United States Air Force's 734th launch, 30th this year and humanity's 2,161st orbital launch attempt. It was the 5th Atlas F/SVS flight and the 4th this year. The payload was bound for Medium Earth Orbit (MEO). The tracked orbit of Navstar 4, one of 2 catalogued objects, from December 14, 1978, was 20,274 × 20,322 km inclined 63.3°. 2 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Atlas F/SVS · United States Air ForceGlobal Positioning System
- Booster
- No booster details on record.
- Mission
- Navigation · Medium Earth Orbit (MEO)
- Milestone
- 5th Atlas F/SVS flight · 4th this yearUnited States Air Force's 734th launch30th this yearhumanity's 2,161st orbital launch attempt116th orbital launch attempt this year
Flight preview
Orbit: as tracked
Navstar 4 · NORAD 11141 · 1978-112 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- OPS 5114 (NAVSTAR 4)
- Object ID
- 1978-112A
- Epoch
- 1978-12-14 05:06:36 UTC
- Mean motion
- 1.99339461 rev/day
- Eccentricity
- 0.0009168
- Inclination
- 63.2666°
- Ascending node
- 219.0181°
- Arg. of perigee
- 88.4°
- Mean anomaly
- 41.8°
- Element set
- 999
- Rev at epoch
- 8
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: MEO.
Catalogued objects
2 catalogued: 1 payload, 1 component; 2 still in orbit
- Navstar 4 · NORAD 11141 · in orbit
Data from J. McDowell, planet4589.org
About this launch
First generation GPS satellite
Pad
Space Launch Complex 3E, Vandenberg SFB, CA, USA
20th launch from Space Launch Complex 3E, 4th this year · 469th from Vandenberg SFB, CA, USA
48 launches from this pad · 919 from Vandenberg SFB, CA, USA
65 days after the previous launch from this pad
Questions
When did Navstar 4 launch?
Navstar 4 launched on December 11, 1978. The time is known to the hour, not the minute.
Where can I watch Navstar 4?
No webcast is on record for this launch.
What rocket launched Navstar 4?
Atlas F/SVS, flown by United States Air Force. Atlas F/SVS spec sheet
Where did Navstar 4 launch from?
Space Launch Complex 3E, Vandenberg SFB, CA, USA.
What orbit did Navstar 4 reach?
The tracked orbit of Navstar 4, one of 2 catalogued objects, from December 14, 1978, was 20,274 × 20,322 km inclined 63.3°.
How many satellites did Navstar 4 launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).
Which program is Navstar 4 part of?
Global Positioning System. About Global Positioning System