Mission record

Atlas Agena B | Ranger 4

Atlas Agena B· Launch Complex 12· Success
Trajectory & orbital insertion
Ascent path is a representation — true ascent telemetry isn’t public.
Provider
United States Air Force
Provider type
Government
Orbit
Lunar Impactor
Mission type
Lunar Exploration
Launch site
United States of America
Date
Mon, 23 Apr 1962 20:50:00 GMT
Orbital launch #
#157 ever

Mission

Ranger 4 was a spacecraft designed to softly impact the lunar surface. Its solar panels were never extended and its sun and earth acquisition system was not initiated due to a failure of a timer in its central computer. It impacted the far side of the Moon on April 26 after 64 hours of flight.

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