United States Air ForceAtlas LV-3 Agena DSpace Launch Complex 13, Cape Canaveral SFS, FL, USA
Vela 2A & 2B
Launched
July 17, 1964
Image: NASA
Summary
Vela 2A & 2B launched on an United States Air Force Atlas LV-3 Agena D from Space Launch Complex 13, Cape Canaveral SFS, FL, USA on July 17, 1964. It was United States Air Force's 203rd launch, 28th this year and humanity's 342nd orbital launch attempt. It was the 11th Atlas LV-3 Agena D flight and the 6th this year. The payload was bound for Elliptical Orbit (Elliptical). The tracked orbit of Vela II-A, one of 3 catalogued objects, from August 4, 1964, was 102,002 × 104,610 km inclined 39.1°. 3 objects from this launch are catalogued, all of them payloads.
- Watch
- No webcast on record.
- Vehicle
- Atlas LV-3 Agena D · United States Air Force
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Elliptical Orbit (Elliptical)
- Milestone
- 11th Atlas LV-3 Agena D flight · 6th this yearUnited States Air Force's 203rd launch28th this yearhumanity's 342nd orbital launch attempt49th orbital launch attempt this year
Flight preview
Orbit: as tracked
Vela II-A · NORAD 836 · 1964-040 · Space-Track · tracking 1 of 3 objects
Show the numbers for orbit elements
- Object
- OPS 3662 (VELA 3)
- Object ID
- 1964-040A
- Epoch
- 1964-08-04 05:52:13 UTC
- Mean motion
- 0.23901682 rev/day
- Eccentricity
- 0.01189
- Inclination
- 39.1349°
- Ascending node
- 207.932°
- Arg. of perigee
- 150.726°
- Mean anomaly
- 209.9454°
- Element set
- 999
- Rev at epoch
- 5
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: Elliptical. Ascent drawn from padside's representative profile.
Catalogued objects
3 catalogued: 3 payloads
- Vela II-A · NORAD 836 · left Earth orbit
- Vela II-B · NORAD 837 · left Earth orbit
- ERS 13 · NORAD 838 · re-entered July 1, 1966
Data from J. McDowell, planet4589.org
About this launch
The Vela (meaning "watchman" in Spanish) series of spacecraft were designed to monitor worldwide compliance with the 1963 nuclear test ban treaty.
Pad

Space Launch Complex 13, Cape Canaveral SFS, FL, USA
2nd launch from Space Launch Complex 13, 1st this year · 115th from Cape Canaveral SFS, FL, USA
21 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
274 days after the previous launch from this pad
Questions
When did Vela 2A & 2B launch?
Vela 2A & 2B launched on July 17, 1964. The time is known to the hour, not the minute.
Where can I watch Vela 2A & 2B?
No webcast is on record for this launch.
What rocket launched Vela 2A & 2B?
Atlas LV-3 Agena D, flown by United States Air Force. Atlas LV-3 Agena D spec sheet
Where did Vela 2A & 2B launch from?
Space Launch Complex 13, Cape Canaveral SFS, FL, USA.
What orbit did Vela 2A & 2B reach?
The tracked orbit of Vela II-A, one of 3 catalogued objects, from August 4, 1964, was 102,002 × 104,610 km inclined 39.1°.
How many satellites did Vela 2A & 2B launch?
3 payloads from this launch are catalogued (Data from J. McDowell, planet4589.org).
