- Launched: May 30, 1966, 14:41:01 UTC
- Landed: June 2, 1966 06:17:36 UTC
- Last Contact: Jan 7, 1967
Surveyor I, the first U.S. spacecraft to achieve a soft landing on the Moon, returned a large quantity of scientific data during its first two lunar days of operation on the lunar surface. After landing in the southwest portion of Oceanus Procellarum on June 2, 1966, the spacecraft transmitted 11,240 high-resolution television pictures. Surveyor I completed its primary mission successfully on July 14, 1966, after transmitting, in addition to the television pictures, data on the bearing strength, temperatures, and radar reflectivity of the Moon. Subsequent engineering interrogations of the spacecraft were conducted through January 1967.