Second stage guidance failure. Area survey photo reconnaissance satellite. 1969-058A. Unmanned soil return mission launched coincident with Apollo 11 mission in last ditch attempt to return lunar soil to earth before United States. After completing 86 communications sessions and 52 orbits of the Moon at various inclinations and altitudes, crashed on the moon on 20 July in an attempted landing. Altitude data used in programming inaccurate or guidance system unable to cope with effect of lunar mascons.
Parameters are for lunar orbit.
Soyuz 11A511M . Titan 3D . Soyuz 11A511U . Investigation of the natural resources of the earth in the interests of various branches of the national economy of the USSR and international cooperation. Investigation of the natural resources of the earth in the interests of various branches of the national economy of the USSR and international cooperation.