Mission Type: Orbiter
Launch Vehicle: Atlas-Centaur (AC-6 / Atlas D no. 151D / Centaur D)
Launch Site: ETR / launch complex 36B
NASA Center: Jet Propulsion Laboratory
Spacecraft Mass: 950 kg
Spacecraft Instruments: none
References:
Deep Space Chronicle: A Chronology of Deep Space and Planetary Probes 1958-2000, by Asif A. Siddiqi, NASA Monographs in Aerospace History No. 24.

This was the second attempt to launch a dummy Surveyor lunar lander spacecraft into a barycentric orbit toward a simulated Moon. Unlike the results of the previous attempt (in March 1965), all systems worked without fault; the Surveyor dynamic model was inserted on a simulated lunar trajectory so precise that it would have landed on the Moon without a trajectory correction on an actual mission. The spacecraft reentered Earth's atmosphere after thirty-one days.

Editor's Note: This mission profile was adapted from an originally published mission profile in Deep Space Chronicle: A Chronology of Deep Space and Planetary Probes 1958-2000, by Asif A. Siddiqi, NASA Monographs in Aerospace History No. 24.