United States Air ForceAtlas SLV-3D CentaurLaunch Complex 36B, Cape Canaveral SFS, FL, USA
Comstar 1B
Launched
July 22, 1976
Image: NASA Marshall Space Flight Center
Summary
Comstar 1B launched on an United States Air Force Atlas SLV-3D Centaur from Launch Complex 36B, Cape Canaveral SFS, FL, USA on July 22, 1976. It was United States Air Force's 673rd launch, 18th this year and humanity's 1,857th orbital launch attempt. It was the 10th Atlas SLV-3D Centaur flight and the 3rd this year. The payload was bound for Geostationary Orbit (Direct-GEO). Comstar 202, one of 2 catalogued objects, reached a 556 × 35,737 km orbit inclined 21.8°. 2 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
- 10th Atlas SLV-3D Centaur flight · 3rd this yearUnited States Air Force's 673rd launch18th this yearhumanity's 1,857th orbital launch attempt74th orbital launch attempt this year
Flight preview
Orbit: as tracked
Comstar 202 · NORAD 9047 · 1976-073 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- COMSTAR 2
- Object ID
- 1976-073A
- Epoch
- 1976-07-22 17:17:10 UTC
- Mean motion
- 2.26148701 rev/day
- Eccentricity
- 0.717478
- Inclination
- 21.838°
- Ascending node
- 86.1389°
- Arg. of perigee
- 178.936°
- Mean anomaly
- 184.5042°
- Element set
- 999
- Rev at epoch
- 0
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: Direct-GEO. Ascent drawn from padside's representative profile.
Catalogued objects
2 catalogued: 1 payload, 1 rocket stage; 2 still in orbit
- Comstar 202 · NORAD 9047 · in orbit
Centaur AC-40 · 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
19th launch from Launch Complex 36B, 2nd this year · 316th from Cape Canaveral SFS, FL, USA
76 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
174 days after the previous launch from this pad
Questions
When did Comstar 1B launch?
Comstar 1B launched on July 22, 1976. The time is known to the hour, not the minute.
Where can I watch Comstar 1B?
No webcast is on record for this launch.
What rocket launched Comstar 1B?
Atlas SLV-3D Centaur, flown by United States Air Force. Atlas SLV-3D Centaur spec sheet
Where did Comstar 1B launch from?
Launch Complex 36B, Cape Canaveral SFS, FL, USA.
What orbit did Comstar 1B reach?
Comstar 202, one of 2 catalogued objects, reached a 556 × 35,737 km orbit inclined 21.8°.
How many satellites did Comstar 1B launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).
