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This bar indicates that you are within the PDS enterprise which includes 6 science discipline nodes and 2 support nodes which are overseen by the Project Management Office at NASA's Goddard Space Flight Center (GSFC). Each node is led by an expert in the subject discipline, supported by an advisory group of other practitioners of that discipline, and subject to selection and approval under a regular NASA Research Announcement.
Mission Information
MISSION_NAME PRE-MAGELLAN
MISSION_ALIAS
MISSION_START_DATE 1968-11-09T12:00:00.000Z
MISSION_STOP_DATE 1988-07-27T12:00:00.000Z
MISSION_DESCRIPTION
MISSION_OBJECTIVES_SUMMARY 
      Mission Objectives Summary    ==================================       The intent of the data set collection is to provide the      planetary science community with radar and gravity data similar      to the kinds of data that Magellan will begin collecting in the      summer of 1990.  The data set collection will be used for      pre-Magellan analyses of Venus and for comparisons to actual      Magellan data.  The entire data set collection and documentation      are available on a CD-ROM entitled Pre-Magellan Radar and      Gravity Data.  A list of the hardware and software that may be      used to read this CD-ROM can be obtained from the PDS      Geosciences Discipline Node.
REFERENCE_DESCRIPTION Arvidson, R.E., E.A. Guinness, S. Slavney, D. Acevedo, J. Hyon, and M. Martin, Pre-Magellan radar and gravity data, Jet Propulsion Laboratory, 1990.