Reports

Gravity: First Measurement on the Lunar Surface

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Science  17 Oct 1969:
Vol. 166, Issue 3903, pp. 384-385
DOI: 10.1126/science.166.3903.384

Abstract

The gravity at the landing site of the first lunar-landing mission has been determined to be 162,821.680 milligals from data telemetered to earth by the lunar module on the lunar surface. The gravity was measured with a pulsed integrating pendulous accelerometer. These measurements were used to compute the gravity anomaly and radius at the landing site.