Pioneer 4:
Pioneer 4's main objective was to photograph the Moon during a flyby. It also carried sensors to study radiation in space.

A navigation malfunction send the spacecraft flying past the Moon at twice the planned distance and its camera sensor was not triggered. It did send back 82 hours of valuable scientific data on radiation in space.

Read More About Pioneer 4

03.03.59:  Launch (05:10:45 UT) 03.06.59:  Contact Lost Status:  Partial Success		Solar System Bodies: Earth's Moon Pioneer 4 Multimedia Gallery Pioneer Program Overview JPL's Pioneer 3 and 4 Page NSSDC Master Catalog: Pioneer 4 (National Space Science Data Center) More Links
Pioneer 4 was the first successful U.S. mission to the Moon. It was also the first U.S. spacecraft to escape Earth's gravity. The probe was tracked to a then record distance from Earth of 654,860 kilometers (392,900 miles).