HEOS-1 (Highly Eccentric Orbit Satellite 1), ESRO's first scientific satellite, launched on a Thor Delta E1 from Cape Canaveral LC-17B into a highly eccentric Earth orbit to study the interplanetary magnetic field and magnetosphere.
- Outcome
- Success
- Orbit
- Elliptical
- Elliptical orbit
- Payload to orbit
- 109 kg (est.)
- Flight
- 13th
- of 17 Thor Delta E1 flights
- Date and time
- 5 December 1968, 18:55 UTC
- Rocket
- Thor Delta E1
- Builder
- McDonnell Douglas
- Launch site
- Space Launch Complex 17B, Cape Canaveral SFS, FL, USA
- Payload
- Astrophysics
- International designator
- 1968-109
- Launches in 1968
- 118th of 128
See it in orbit
Space Atlas shows the satellites and rocket stages from this launch in 3D.
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