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This site may be down on Wednesdays between 7:00 and 9:00 pm Central Time for maintenance.

Viking Orbiter and Mariner 9 Occultation, Gravity and Topography Data

These data are maintained at the Geosciences Node but have not been formally archived with PDS. The data files do not have PDS labels. Please use this data set with caution. 

PDS restores old data sets like this one, which was created before PDS existed, based on user demand and availability of resources. Meanwhile we make the data available to those who are willing to accept the risks of using data of uncertain quality.


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Curator: Susan Slavney
NASA Official: Raymond E. Arvidson
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