Explorer 39 (AD-C), a 3.6 m inflatable air-density balloon, dual-launched with Explorer 40 (Injun 5) magnetospheric research satellite. Scout B from Vandenberg SLC-5 lofted them on 8 August 1968 into a highly elliptical near-polar orbit for upper-atmosphere density and radiation studies.
- Outcome
- Success
- Orbit
- Elliptical
- Elliptical orbit
- Payload to orbit
- 86 kg
- Flight
- 12th
- of 20 Scout B flights
- Date and time
- 8 August 1968, 20:12 UTC
- Rocket
- Scout B
- Builder
- Vought
- Launch site
- Space Launch Complex 5, Vandenberg SFB, CA, USA
- Payload
- Earth Science
- International designator
- 1968-066
- Launches in 1968
- 72nd of 128
See it in orbit
Space Atlas shows the satellites and rocket stages from this launch in 3D.
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