Abstract

A preliminary determination has been made of the photometric properties of the lunar surface from high-resolution pictures received from the Surveyor I spacecraft. Several target areas were chosen at selected locations around the spacecraft, and photometric measurements were taken with the television camera throughout the lunar day. Surveyor I data agree within ±20% with the terrestrially observed photometric properties. Initial examination of the data indicates no anomalies of the photometric properties of homogeneous areas on scales greater than 6 cm in diameter. Luminance factors were estimated from the observed data and ranged from 7.0% to 7.5% for more than 91% of the area; however, values of 5% to 25% were recorded in some locations. The chromaticity coordinates of the disturbed area near one of the footpads were found to be very close to natural sunlight on a gray paint. A preliminary estimate of the spectral radiance factor of this area is given, using an eigenvector-analysis technique. The spacecraft characteristics, viewing geometry, and ground-recording techniques are included, along with a brief description of errors.

© 1968 Optical Society of America

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References

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  1. H. N. Russell, Astrophys. J. XLIII, 173 (1916).
  2. N. N. Sytinskaya and V. V. Sharonov, Leningrad Universitet, Astronomicheskaia Observatoria, Uchenye Zapiski, No. 153, pp. 114–154 (1952) (in Russian); Trudy 16, 114–154 (1953); Trans. by Space Technology Lab., Inc., ARTIC STL-TR-61-5110-23, May 1961.
  3. D. Willingham, The Lunar Reflectivity Model for Ranger Block III Analysis, Technical Report 32-664 (Jet Propulsion Laboratory, Pasadena, California, November, 1964).
  4. B. Hapke, Astron. J. 71, 333 (1966).
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  6. J. L. Simonds, J. Opt. Soc. Am. 53, 968 (1963).
  7. D. B. Judd, D. L. MacAdam, and G. Wyszecki, J. Opt. Soc. Am. 54, 1031 (1964).
  8. H. A. Pohn and R. L. Wildey, A Photoelectric-Photographic Map of the Normal Albedo of the Moon, Open File Reports (U. S. Geological Survey, Branch of Astrogeology, Washington, D. C., 1966).

Hapke, B.

B. Hapke, Astron. J. 71, 333 (1966).

Judd, D. B.

D. B. Judd, D. L. MacAdam, and G. Wyszecki, J. Opt. Soc. Am. 54, 1031 (1964).

MacAdam, D. L.

D. B. Judd, D. L. MacAdam, and G. Wyszecki, J. Opt. Soc. Am. 54, 1031 (1964).

Pohn, H. A.

H. A. Pohn and R. L. Wildey, A Photoelectric-Photographic Map of the Normal Albedo of the Moon, Open File Reports (U. S. Geological Survey, Branch of Astrogeology, Washington, D. C., 1966).

Rennilson, J.

J. Rennilson, in Proceedings of the 8th International Color Meeting, Lucerne, Switzerland (Centre d'Information de la Couleur, 23 Rue Notre-Dame-des-Victoires, Paris, 1965).

Russell, H. N.

H. N. Russell, Astrophys. J. XLIII, 173 (1916).

Sharonov, V. V.

N. N. Sytinskaya and V. V. Sharonov, Leningrad Universitet, Astronomicheskaia Observatoria, Uchenye Zapiski, No. 153, pp. 114–154 (1952) (in Russian); Trudy 16, 114–154 (1953); Trans. by Space Technology Lab., Inc., ARTIC STL-TR-61-5110-23, May 1961.

Simonds, J. L.

J. L. Simonds, J. Opt. Soc. Am. 53, 968 (1963).

Sytinskaya, N. N.

N. N. Sytinskaya and V. V. Sharonov, Leningrad Universitet, Astronomicheskaia Observatoria, Uchenye Zapiski, No. 153, pp. 114–154 (1952) (in Russian); Trudy 16, 114–154 (1953); Trans. by Space Technology Lab., Inc., ARTIC STL-TR-61-5110-23, May 1961.

Wildey, R. L.

H. A. Pohn and R. L. Wildey, A Photoelectric-Photographic Map of the Normal Albedo of the Moon, Open File Reports (U. S. Geological Survey, Branch of Astrogeology, Washington, D. C., 1966).

Willingham, D.

D. Willingham, The Lunar Reflectivity Model for Ranger Block III Analysis, Technical Report 32-664 (Jet Propulsion Laboratory, Pasadena, California, November, 1964).

Wyszecki, G.

D. B. Judd, D. L. MacAdam, and G. Wyszecki, J. Opt. Soc. Am. 54, 1031 (1964).

Other (8)

H. N. Russell, Astrophys. J. XLIII, 173 (1916).

N. N. Sytinskaya and V. V. Sharonov, Leningrad Universitet, Astronomicheskaia Observatoria, Uchenye Zapiski, No. 153, pp. 114–154 (1952) (in Russian); Trudy 16, 114–154 (1953); Trans. by Space Technology Lab., Inc., ARTIC STL-TR-61-5110-23, May 1961.

D. Willingham, The Lunar Reflectivity Model for Ranger Block III Analysis, Technical Report 32-664 (Jet Propulsion Laboratory, Pasadena, California, November, 1964).

B. Hapke, Astron. J. 71, 333 (1966).

J. Rennilson, in Proceedings of the 8th International Color Meeting, Lucerne, Switzerland (Centre d'Information de la Couleur, 23 Rue Notre-Dame-des-Victoires, Paris, 1965).

J. L. Simonds, J. Opt. Soc. Am. 53, 968 (1963).

D. B. Judd, D. L. MacAdam, and G. Wyszecki, J. Opt. Soc. Am. 54, 1031 (1964).

H. A. Pohn and R. L. Wildey, A Photoelectric-Photographic Map of the Normal Albedo of the Moon, Open File Reports (U. S. Geological Survey, Branch of Astrogeology, Washington, D. C., 1966).

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