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Mercury Encounter IPL Caltech Microfiche


Availability: At NSSDC, Ready for Offline Distribution (or Staging if Digital)

Time span: 1974-03-16 to 1974-09-21


This data set consists of microfiche cards obtained from California Institute of Technology (CalTech) of Mariner 10 IPL photography of the third Mercury encounter and the corresponding support data for each photo. The first part of each card contains the photographs and the data block that accompanies each photograph. The other part of the card contains the matching support data (most accurate) for each photograph with two supporting data blocks per microfiche frame. All data are arranged in order of the Flight Data System (FDS) count. The supporting data are the following: FDS count, event time, manual code (lab ID), time from encounter (in seconds), altitude, local time at center (in hours), camera, direction of north in image (in degrees clockwise from 5-6, as designated on frame diagram), surface distance between points designated on frame diagram, latitude and longitude of corners and center point of frame, solar lighting, phase and viewing angles of the corner and center points, resolutions and slant ranges for the corner and center points. Quality is generally good except for card no. 4 which is badly blurred.


  • Planetary Science: Atmospheres
  • Planetary Science: Geology and Geophysics


  • 73-085A-01Q

Additional Information



Questions or comments about this data collection can be directed to: Coordinated Request and User Support Office.



NameRoleOriginal AffiliationE-mail
Mr. Mark NelsonGeneral ContactCalifornia Institute of
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