Computer Science – Performance
Scientific paper
Nov 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974tsbb.nasa..268g&link_type=abstract
In NASA. Ames Res. Center Telescope Systems for Balloon-Borne Res. p 268-283 (SEE N75-12735 03-74)
Computer Science
Performance
Attitude Control, Balloon-Borne Instruments, High Altitude Balloons, Infrared Astronomy, Star Trackers, Telescopes, Equipment Specifications, Performance Tests, Product Development, Systems Engineering
Scientific paper
The development of a balloon-borne attitude control system for infrared astronomy studies is discussed. The Balloon Infrared Astronomy Platform (BIRAP) is the result of the development effort. The BIRAP uses electronic gimballing for the offset pointing which eliminates a set of mechanical gimbals. Guide stars with visual magnitudes as low as plus 6 are used for fine tracking assuring that all areas of the sky can be covered. The BIRAP control concept uses a closed loop system in the airborne equipment with automatic update through a command link that can be operated either manually or automatically by a ground based computer.
Greeb M. E.
True G. A.
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