Clementine Collection

This figure shows the gravity signature of Mare Orientale and its surroundings from the Goddard Lunar Module-1 (GLM-1). The gravity information was derived from spacecraft tracking observations from Clementine as well as Lunar Orbiters 2, 3, 4, and 5, and the Apollo 15 subsatellite. The map shows a gravity high (yellow) at the center of the basin that indicates a mass concentration, or "mascon." Also visible is a major gravity low (purple) associated with one of the basin rings that indicates a significant mass deficit beneath the surface.

A high resolution image is also available. Warning: this file is very large (9.4 Mbytes).

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