Vectorial Reflectance of the Explorer IX Satellite Material

Abstract

Reflectance measurements were made at different azimuth and colatitude angles relative to flat samples of the aluminum and white epoxy paint surfaces used on the Explorer Ix satellite by means of an adapted monoplanar goniophotometer. Contour charts of the reflectance from these samples were obtained from the results of these measurements. Reflectance relative to mutually perpendicular axes was obtained by graphical integration of the contour charts. The vectorial summation of the reflectance was thus obtained. The aluminum sample was found to be essentially a specular reflector and the white epoxy paint sample was found to be essentially a diffuse reflector.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1964
Accession Number
ADA397562

Entities

People

  • Gerald M. Keating
  • James A. Mullins

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aluminum
  • Angle Of Incidence
  • Artificial Satellites
  • Coordinate Systems
  • Diffuse Reflection
  • Intensity
  • Light Sources
  • Low Angles
  • Materials
  • Measurement
  • Radiant Intensity
  • Radiation
  • Reflectors
  • Schematic Diagrams
  • Solar Energy
  • Solar Radiation
  • Specular Reflection

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Spectroscopy.
  • Surface Coatings Technology.

Technology Areas

  • Space