United States Air ForceAtlas SLV-3D CentaurLaunch Complex 36B, Cape Canaveral SFS, FL, USA
Comstar 1C
Launched
June 29, 1978
Image: NASA Marshall Space Flight Center
Summary
Comstar 1C launched on an United States Air Force Atlas SLV-3D Centaur from Launch Complex 36B, Cape Canaveral SFS, FL, USA on June 29, 1978. It was United States Air Force's 724th launch, 20th this year and humanity's 2,115th orbital launch attempt. It was the 18th Atlas SLV-3D Centaur flight and the 5th this year. The payload was bound for Geostationary Orbit (Direct-GEO). The tracked orbit of Comstar 203, one of 3 catalogued objects, from July 13, 1978, was 35,481 × 35,793 km inclined 0.1°. 3 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Atlas SLV-3D Centaur · United States Air Force
- Booster
- No booster details on record.
- Mission
- Communications · Geostationary Orbit (Direct-GEO)
- Milestone
- 18th Atlas SLV-3D Centaur flight · 5th this yearUnited States Air Force's 724th launch20th this yearhumanity's 2,115th orbital launch attempt70th orbital launch attempt this year
Flight preview
Orbit: as tracked
Comstar 203 · NORAD 10975 · 1978-068 · Space-Track · tracking 1 of 3 objects
Show the numbers for orbit elements
- Object
- COMSTAR 3
- Object ID
- 1978-068A
- Epoch
- 1978-07-13 00:00:00 UTC
- Mean motion
- 1.00832735 rev/day
- Eccentricity
- 0.0037167
- Inclination
- 0.0811°
- Ascending node
- 280.6345°
- Arg. of perigee
- 300.0781°
- Mean anomaly
- 273.0347°
- Element set
- 999
- Rev at epoch
- 14
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: Direct-GEO.
Catalogued objects
3 catalogued: 1 payload, 1 rocket stage, 1 debris; 3 still in orbit
- Comstar 203 · NORAD 10975 · in orbit
Centaur AC-41 · in orbit
Data from J. McDowell, planet4589.org
About this launch
Geostationary communications satellite built by Hughes Aircraft Company
Pad

Launch Complex 36B, Cape Canaveral SFS, FL, USA
23rd launch from Launch Complex 36B, 3rd this year · 348th from Cape Canaveral SFS, FL, USA
76 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
89 days after the previous launch from this pad
Questions
When did Comstar 1C launch?
Comstar 1C launched on June 29, 1978. The time is known to the hour, not the minute.
Where can I watch Comstar 1C?
No webcast is on record for this launch.
What rocket launched Comstar 1C?
Atlas SLV-3D Centaur, flown by United States Air Force. Atlas SLV-3D Centaur spec sheet
Where did Comstar 1C launch from?
Launch Complex 36B, Cape Canaveral SFS, FL, USA.
What orbit did Comstar 1C reach?
The tracked orbit of Comstar 203, one of 3 catalogued objects, from July 13, 1978, was 35,481 × 35,793 km inclined 0.1°.
How many satellites did Comstar 1C launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).
