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Christensen, Elmer J.

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1970 1973: 1 1975: 1 1980 1990 2000 2010 2020
1973 – 1975

Works as Author 2

#2884 Topographic heights off the 6.1 mb areoid. This map is a composite of occultation, radar, infrared, ultravioler, and photogrammetric data corrected for consistency (EJ Christensen) and hand contoured (RS Saunders), paying close attention to surface features Topographic heights off the 6.1 mb areoid. This map is a composite of occultation, radar, infrared, ultravioler, and photogrammetric data corrected for consistency (EJ Christensen) and hand contoured (RS Saunders), paying close attention to surface features Christensen, Elmer J · 1975 #2214 Mariner 9 Photomosaic Globe of Mars Mariner 9 Photomosaic Globe of Mars 1: 5 560 000 Christensen, Elmer J · 1973