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ERIC Number: ED069147
Record Type: RIE
Publication Date: 1972-Mar
Reference Count: 0
A Computer Program for Mapping Satellite-borne Narrow-Beam Antenna Footprints on Earth. Memorandum Number 72/3.
Stagl, Thomas W.; Singh, Jai P.
Written primarily to define the area of the earth covered by a narrow-beam antenna carried on a synchronous satellite in circular, near equatorial orbits, a computer program has been developed that computes the locus of intersection of a quadric cone and a sphere. The program, which outputs a list of the longitude and latitude coordinates of the locus of intersection and a plot of the locus, is presented and described in several sections in this paper: first, a mathematical analysis of the problem is offered; next, a section on usage describes inputs and outputs; and finally, some typical examples are presented. A program listing is appended. See also EM 010 450. (Author/SH)
Publication Type: N/A
Education Level: N/A
Sponsor: National Aeronautics and Space Administration, Washington, DC.
Authoring Institution: Washington Univ., St. Louis, MO. Program on Application of Communication Satellites to Educational Development.