Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976pazh....2..126e&link_type=abstract
Pis'ma v Astronomicheskii Zhurnal, vol. 2, Feb. 1976, p. 126, 127. In Russian.
Astronomy and Astrophysics
Astronomy
Computer Systems Design, Orbit Calculation, Orbital Position Estimation, Photographic Processing Equipment, Satellite Observation, Satellite Orbits, Astronomical Catalogs, Data Processing, Data Reduction, Magnetic Storage
Scientific paper
The paper describes only the chief characteristics of an automatic, operative computer system for calculating satellite coordinates from photographic observations whose data come from several stations to a central processing facility. The most important feature is that a method was devised for storing the whole CAO star catalog in computer memory using 397,824 45-bit words. The catalog occupies only a fifth of the volume of a magnetic tape, and the access time for the information of stars whose characteristics are written in one zone does not exceed 0.5 sec, not counting the time to supply the zone, which amounts to less than one minute. The astrometric reduction programs were modified so that they became structural units of the complex, freely exchanging data across the computer operation memory. Total processing time for one photograph is 5-6 minutes.
Enalskii V. A.
Iurova L. A.
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