ATS-4 (ATS-D), a NASA Applications Technology Satellite for gravity-gradient stabilization, communications, imaging, and ion-thruster tests. Atlas SLV-3 Centaur-D (AC-17) from Cape Canaveral SLC-36A on 10 August 1968; Centaur failed to restart after parking-orbit coast and the craft decayed from low LEO on 17 October.
- Outcome
- Partial
- Orbit
- GSO
- Geosynchronous orbit
- Payload to orbit
- 2.5 T (est.)
- Flight
- 4th
- of 17 Atlas SLV-3C Centaur flights
- Date and time
- 10 August 1968, 22:33 UTC
- Rocket
- Atlas SLV-3C Centaur
- Builder
- Convair
- Launch site
- Launch Complex 36A, Cape Canaveral SFS, FL, USA
- Payload
- Earth Science
- International designator
- 1968-068
- Launches in 1968
- 74th of 128
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