NASA - National Aeronautics and Space Administration

+ NASA Homepage
+ NASA en Español
+ Contact NASA
PDS Geosciences Node, Washington University in St. Louis
HOME DATA AND SERVICES TOOLS ABOUT US CONTACT US SITE MAP
Services
Geosciences Node Data
Help
Scheduled Maintenance
This site may be down on Thursdays between 7:00 and 9:30 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.


Data Sets On-Line

Other Resources

Note to Users

The Martian gravity models are cumulative. They are revised when more gravity data become available from each new mission. The models created from Viking and Mariner data have long since been revised with data from the Mars Global Surveyor and Mars Reconnaissance Orbiter. Please refer to the MGS Radio Science and MRO Radio Science data sets.

The MGS Mars Orbiter Laser Altimeter (MOLA) topography data sets are more recent than the Viking and Mariner topography data listed here. Please see the MOLA data set page.

PDS Nodes PDS Atmospheres Geosciences Imaging NAIF PPI Rings Small Bodies
FirstGov Logo
+ Freedom of Information Act
+ NASA 2003 Strategic Plan
+ NASA Privacy Statement, Disclaimer, and
   Accessibility Certification

+ Copyright/Image Use Policy
NASA Logo
Curator: Susan Slavney
NASA Official: Raymond E. Arvidson
Last Updated:
+ Comments and Questions