Numerical Arc Segmentation Algorithm For A Radio Conference Nasarc Version 4 0 User S Manual

The information in the NASARC (Version 4.0) Technical Manual (NASA-TM-101453) and NASARC (Version 4.0) User's Manual (NASA-TM-101454) relates to the state of Numerical Arc Segmentation Algorithm for a Radio Conference (NASARC) software development through November 1, 1988. The Technical Manual describes the NASARC concept and the algorithms used to implement the concept. The User's Manual provides information on computer system considerations, installation instructions, description of input files, and program operation instructions. Significant revisions were incorporated in the Version 4.0 software over prior versions. These revisions have further enhanced the modeling capabilities of the NASARC procedure and provide improved arrangements of predetermined arcs within the geostationary orbit. Array dimensions within the software were structured to fit within the currently available 12-megabyte memory capacity of the International Frequency Registration Board (IFRB) computer facility. A piecewise approach to predetermined arc generation in NASARC (Version 4.) allows worldwide planning problem scenarios to be accommodated within computer run time and memory constraints with enhanced likelihood and ease of solution. Whyte, Wayne A., Jr. and Heyward, Ann O. and Ponchak, Denise S. and Spence, Rodney L. and Zuzek, John E. Glenn Research Center ALGORITHMS; COMPUTER PROGRAMMING; GEOSYNCHRONOUS ORBITS; MEMORY (COMPUTERS); SOFTWARE ENGINEERING; USER MANUALS (COMPUTER PROGRAMS); FREQUENCIES; INSTALLING; PLANNING; SEGMENTS...

The information contained in the NASARC (Version 4.0) Technical Manual and NASARC (Version 4.0) User's Manual relates to the Numerical Arc Segmentation Algorithm for a Radio Conference (NASARC) software development through November 1, 1988. The Technical Manual describes the NASARC concept and the algorithms used to implement the concept. The User's Manual provides information on computer system considerations, installation instructions, description of input files, and program operation instructions. Significant revisions were incorporated in the Version 4.0 software over prior versions. These revisions have further enhanced the modeling capabilities of the NASARC procedure and provide improved arrangements of predetermined arcs within the geostationary orbits. Array dimensions within the software were structured to fit within the currently available 12 megabyte memory capacity of the International Frequency Registration Board (IFRB) computer facility. A piecewise approach to predetermined arc generation in NASARC (Version 4.0) allows worldwide planning problem scenarios to be accommodated within computer run time and memory constraints with enhanced likelihood and ease of solution. Whyte, Wayne A., Jr. and Heyward, Ann O. and Ponchak, Denise S. and Spence, Rodney L. and Zuzek, John E. Glenn Research Center ALGORITHMS; CARRIER FREQUENCIES; COMPUTER PROGRAMMING; FREQUENCY ASSIGNMENT; SATELLITE TRANSMISSION; SEGMENTS; USER MANUALS (COMPUTER PROGRAMS); ANTENNA RADIATION PATTERNS; ATMOSPHERIC EFFECTS; COMPUTER PROGRAMS; GEOSYNCHRONOUS ORBITS; INSTALLING; MEMORY (COMPUTERS)...