Echo 1 (NASA A-10), the first attempt to orbit a 30 m passive communications balloon, launched on the maiden Thor DM-19 Delta from Cape Canaveral LC-17A on 13 May 1960. Second-stage attitude control failed during coast, and the satellite never reached orbit.
- Outcome
- Failure
- Orbit
- Elliptical
- Elliptical orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 1st
- of 12 Thor Delta flights
- Date and time
- 13 May 1960, 09:16 UTC
- Rocket
- Thor Delta
- Builder
- McDonnell Douglas
- Launch site
- Space Launch Complex 17A, Cape Canaveral SFS, FL, USA
- Payload
- Communications
- Launches in 1960
- 11th of 38