Accession Number : AD0257826

Title :   THE DYNAMIC MAPPING CONTRACT

Corporate Author : ELECTRONIC SPECIALTY CO LOS ANGELES CALIF

Personal Author(s) : LEES,ALAN B. ; DELANO,RICHARD H.

Report Date : 24 MAR 1961

Pagination or Media Count : 1

Abstract : This analysis was initiated to develop a target location and charting capability compatible with future weapon systems. Specifically, the problem of mapping in a dynamic earth-moon environment was investigated assuming the validity of Euclidean geometry and Newtonian mechanics as first approximations. Successful mapping in a dynamic environment is not the same as on the earth because there is no readily available reference surface such as the ellipsoids. As on the earth, though, a reference coordinate system and units of length are required. A discussion is conducted of the various reference systems that could be used. After analyzing possible coordinate systems, using the criteria of (1) Computational advantage; (2) Analytical advantage; (3) Data storage advantage; (4) Relation to basic observations, and (5) Conceptual advantage; it was determined that no specific coordinate system could be considered as the best for all dynamic mapping. When the units of distance are considered, many sources of error are present, but because of the rapid progress being made in determining such values as solar parallax, the errors will be reduced. (Author)

Descriptors :   *GEODESICS, *MAPPING, *MOON, ASTRONOMY, LUNAR PROBES, MIRRORS, POSITION FINDING, SOLAR SYSTEM, TEST METHODS, TRANSFORMATIONS (MATHEMATICS)

Distribution Statement : APPROVED FOR PUBLIC RELEASE