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Luna 13

Courtesy of NASA's National Space Science Data Center

Launch Date/Time: 1966-12-21 at 10:19:00 UTC
Launch Site/Country: Tyuratam (Baikonur Cosmodrome), U.S.S.R.
Launch Vehicle: Modified SS-6 (Sapwood) with 2nd Generation Upper Stage + Escape Stage
On-orbit dry mass: 1700.00 kg. (3,740 lb.)

Description

The Luna 13 spacecraft was launched toward the Moon from an earth-orbiting platform and accomplished a soft landing on December 24, 1966, in the region of Oceanus Procellarum. The petal encasement of the spacecraft was opened, antennas were erected, and radio transmissions to Earth began four minutes after the landing. On December 25 and 26, 1966, the spacecraft television system transmitted panoramas of the nearby lunar landscape at different sun angles. Each panorama required approximately 100 minutes to transmit. The spacecraft was equipped with a mechanical soil-measuring penetrometer, a dynamograph, and a radiation densitometer for obtaining data on the mechanical and physical properties and the cosmic-ray reflectivity of the lunar surface.

The purpose of this experiment was to obtain information on the characteristics of the lunar surface. These characteristics included the amount of cratering, structure and size of craters, the amount, distribution, and sizes of ejecta, mechanical properties of the surface such as bearing strength, cohesiveness, compaction, etc. Determination and recognition of processes operating to produce the lunar surface features also were among the objectives of this photographic experiment.

It is believed that transmissions from the spacecraft ceased before the end of December 1966.

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