United States Air ForceThor Delta E1Space Launch Complex 17B, Cape Canaveral SFS, FL, USA
HEOS 1
Launched
December 5, 1968
Image: NASA
Summary
HEOS 1 launched on an United States Air Force Thor Delta E1 from Space Launch Complex 17B, Cape Canaveral SFS, FL, USA on December 5, 1968. It was United States Air Force's 470th launch, 37th this year and humanity's 909th orbital launch attempt. It was the 13th Thor Delta E1 flight and the 3rd this year. The payload was bound for Elliptical Orbit (Elliptical). The tracked orbit of HEOS 1, one of 2 catalogued objects, from December 10, 1968, was 429 × 222,277 km inclined 28.3°. 2 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Thor Delta E1 · United States Air Force
- Booster
- No booster details on record.
- Mission
- Astrophysics · Elliptical Orbit (Elliptical)
- Milestone
- 13th Thor Delta E1 flight · 3rd this yearUnited States Air Force's 470th launch37th this yearhumanity's 909th orbital launch attempt121st orbital launch attempt this year
Flight preview
Orbit: as tracked
HEOS 1 · NORAD 3595 · 1968-109 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1968-109A
- Epoch
- 1968-12-10 12:51:59 UTC
- Mean motion
- 0.21493448 rev/day
- Eccentricity
- 0.9422397
- Inclination
- 28.2559°
- Ascending node
- 185.0409°
- Arg. of perigee
- 270.1188°
- Mean anomaly
- 4.7348°
- Element set
- 999
- Rev at epoch
- 2
- 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
2 catalogued: 1 payload, 1 rocket stage
- HEOS 1 · NORAD 3595 · left Earth orbit December 6, 1968
Delta 61 · re-entered December 27, 1968
Data from J. McDowell, planet4589.org
About this launch
HEOS 1 (Highly Eccentric Orbit Satellite) was an earth-orbiting, spin-stabilized satellite that was launched by ESA. The spacecraft objectives were to study interplanetary magnetic fields, cosmic rays, the solar wind, and the magnetosheath.
Pad
Space Launch Complex 17B, Cape Canaveral SFS, FL, USA
35th launch from Space Launch Complex 17B, 2nd this year · 225th from Cape Canaveral SFS, FL, USA
132 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
27 days after the previous launch from this pad
Questions
When did HEOS 1 launch?
HEOS 1 launched on December 5, 1968. The time is known to the hour, not the minute.
Where can I watch HEOS 1?
No webcast is on record for this launch.
What rocket launched HEOS 1?
Thor Delta E1, flown by United States Air Force. Thor Delta E1 spec sheet
Where did HEOS 1 launch from?
Space Launch Complex 17B, Cape Canaveral SFS, FL, USA.
What orbit did HEOS 1 reach?
The tracked orbit of HEOS 1, one of 2 catalogued objects, from December 10, 1968, was 429 × 222,277 km inclined 28.3°.
How many satellites did HEOS 1 launch?
1 payload from this launch is catalogued (Data from J. McDowell, planet4589.org).