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Mars Global Surveyor
Mars Orbiter Camera

From Mars, With Love

MGS MOC Release No. MOC2-135, 17 June 1999

 

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First, Mars seemed to be greeting Mars Global Surveyor (MGS) with a Happy Face. Now, it seems as if the planet is sending its love with the latest picture (above, left) from MGS's Mars Orbiter Camera (MOC).

This valentine from Mars (above, left) is actually a pit formed by collapse within a straight-walled trough known in geological terms as a graben. Graben are formed along fault lines by expansion of the bedrock terrain (see "Chain of Pits on Pavonis Mons" for more information). The graben in which the pit formed can be seen in the full MOC image, depicted on the right (above).

The heart-shaped pit is about 2.3 kilometers (1.4 miles) at its widest. The image was targeted by the MOC team in order to examine the relationship between a lava flow (margins indicated by white arrows, above right) and the graben and pits that disrupted and cut across the flow. The graben, pit, and lava flow are located on the east flank of the Alba Patera volcano in northern Tharsis. The MOC images are illuminated from the left.

 


Malin Space Science Systems and the California Institute of Technology built the MOC using spare hardware from the Mars Observer mission. MSSS operates the camera from its facilities in San Diego, CA. The Jet Propulsion Laboratory's Mars Surveyor Operations Project operates the Mars Global Surveyor spacecraft with its industrial partner, Lockheed Martin Astronautics, from facilities in Pasadena, CA and Denver, CO.

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