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A process for retrieval of data from a compiled star catalogue
Published online by Cambridge University Press: 12 April 2016
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For certain space vehicles there is a need to accurately determine vehicle attitude. Some of these spacecraft, such as NASA’s planned LANDSAT-D and Gamma Ray Explorer, will use observations from star sensors to determine fine attitude. One input to the attitude determination software is a specialized stellar data base. The initial step in this software is to identify and match the star images with catalogue stars. The Naval Surface Weapons Center (NSWC) has compiled a special star catalogue for such applications. This paper describes the criteria for the NSWC catalogue and how it is utilized. Because of the large number of stars available, a subset can be divided into cells defined by mission criteria. The cells are stored as a random access mass storage file, thus allowing quick access to the information. This greatly reduces execution time for the software. One scheme for accessing stars from mass storage is described.
- Type
- D. Recent Software Developments
- Information
- International Astronomical Union Colloquium , Volume 64: Automated Data Retrieval in Astronomy , 1982 , pp. 123 - 125
- Copyright
- Copyright © Reidel 1982
References
Gottlieb, D.M.: December, 1977, Computer Sciences Corporation, CSC/SD-76/604/UDl, Skymap System Description (Revision 1).Google Scholar
Ochsenbein, F., Egret, D., and Bischoff, M.: 1977, “The Catalogue of Stellar Identifications” in Compilation, Critical Evaluation and Distribution of Stellar Data, pp. 31–36, Jaschek, C. and Wilkins, G.A., Editors, D. Reidei Publ. Co., Dordrecht, Holland.Google Scholar
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