United States Air ForceAtlas SLV-3D CentaurLaunch Complex 36A, Cape Canaveral SFS, FL, USA
Intelsat-4A 4
Launched
May 26, 1977
Image: NASA Marshall Space Flight Center
Summary
Intelsat-4A 4 launched on an United States Air Force Atlas SLV-3D Centaur from Launch Complex 36A, Cape Canaveral SFS, FL, USA on May 26, 1977. It was United States Air Force's 688th launch, 8th this year and humanity's 1,957th orbital launch attempt. It was the 11th Atlas SLV-3D Centaur flight and the 1st this year. The payload was bound for Geostationary Orbit (Direct-GEO). INTELSAT IVA F4, one of 2 catalogued objects, reached a 555 × 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
- 11th Atlas SLV-3D Centaur flight · 1st this yearUnited States Air Force's 688th launch8th this yearhumanity's 1,957th orbital launch attempt42nd orbital launch attempt this year
Flight preview
Orbit: as tracked
INTELSAT IVA F4 · NORAD 10024 · 1977-041 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- INTELSAT 4A-F4
- Object ID
- 1977-041A
- Epoch
- 1977-05-26 17:00:22 UTC
- Mean motion
- 2.26153588 rev/day
- Eccentricity
- 0.7174999
- Inclination
- 21.83°
- Ascending node
- 25.5188°
- Arg. of perigee
- 178.9349°
- Mean anomaly
- 184.4238°
- 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; 1 still in orbit
- INTELSAT IVA F4 · NORAD 10024
Centaur AC-39 · in orbit
Data from J. McDowell, planet4589.org
About this launch
Geostationary communications satellite developed by Hughes Aircraft Company
Pad
Launch Complex 36A, Cape Canaveral SFS, FL, USA
20th launch from Launch Complex 36A, 1st this year · 324th from Cape Canaveral SFS, FL, USA
71 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
377 days after the previous launch from this pad
Questions
When did Intelsat-4A 4 launch?
Intelsat-4A 4 launched on May 26, 1977. The time is known to the hour, not the minute.
Where can I watch Intelsat-4A 4?
No webcast is on record for this launch.
What rocket launched Intelsat-4A 4?
Atlas SLV-3D Centaur, flown by United States Air Force. Atlas SLV-3D Centaur spec sheet
Where did Intelsat-4A 4 launch from?
Launch Complex 36A, Cape Canaveral SFS, FL, USA.
What orbit did Intelsat-4A 4 reach?
INTELSAT IVA F4, one of 2 catalogued objects, reached a 555 × 35,737 km orbit inclined 21.8°.
How many satellites did Intelsat-4A 4 launch?
1 payload from this launch is catalogued (Data from J. McDowell, planet4589.org).