Explorer S-56, a NASA atmospheric-density balloon satellite on the maiden Scout X-1 flight from Wallops Island; a second-stage malfunction prevented the payload from reaching orbit.
- Outcome
- Failure
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 1st
- of 4 Scout X-1 flights
- Date and time
- 4 December 1960, 21:14 UTC
- Rocket
- Scout X-1
- Builder
- Vought
- Launch site
- Launch Area 3, Wallops Flight Facility, Virginia, USA
- Payload
- Astrophysics
- Launches in 1960
- 34th of 38