Values of the Photometric Parameters of Mars and Their Interpretation

Abstract

Photometric data for the Martian disk obtained by Thorpe from television-camera pictures taken by Mariner 9 have been used to derive values for the parameters in the photometric function due to Meador and Weaver. The photometric function can thus be applied to Mars and to the design of cameras for photography of Mars. Values of the parameters are for one wavelength only, 0.56 micrometers, and are average or effective values for the Martian disk. The values derived herein have been interpreted to provide semi-quantitative information on the soil. The results do not disagree with other indications that the effective mean diameter of the surface particles is about 400 micrometers. Another result is that the mean intercenter spacing of adjacent particles may be about 4/3 of the mean diameters.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1974
Accession Number
ADA279542

Entities

People

  • G. P. Wood
  • W. E. Meador
  • W. R. Weaver

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Bearing Strength
  • Brightness
  • Cameras
  • Diameters
  • Dust Storms
  • Equations
  • Forward Scattering
  • Geometry
  • Materials
  • Particle Size
  • Particles
  • Photography
  • Physical Properties
  • Scattering
  • Space Sciences
  • Surface Temperature
  • Television Cameras

Readers

  • Computer Vision.
  • Marine Hydrodynamics
  • Materials Science (Mechanical Engineering).

Technology Areas

  • Space