Explorer 38 (RAE-A), NASA's first Radio Astronomy Explorer, measuring low-frequency galactic and solar radio sources with long-wire antennas. Delta J from Vandenberg SLC-2E on 4 July 1968 placed it in a high-apogee orbit—the sole Delta J flight.
- Outcome
- Success
- Orbit
- MEO
- Medium Earth orbit
- Payload to orbit
- 268 kg
- Flight
- 1st
- Only Thor Delta J flight
- Date and time
- 4 July 1968, 17:26 UTC
- Rocket
- Thor Delta J
- Builder
- McDonnell Douglas
- Launch site
- Space Launch Complex 2E, Vandenberg SFB, CA, USA
- Payload
- Astrophysics
- International designator
- 1968-055
- Launches in 1968
- 61st of 128
See it in orbit
Space Atlas shows the satellites and rocket stages from this launch in 3D.
View satellites in Space Atlas