00000nam 2200000zi 4500 9.887863 CaOODSP 20221107171826 m o d f cr |n||||||||| 200529e198310##onca ob f000 0 eng d CaOODSP eng rda CaOODSP Co24-3/1-83-052E-PDF Hughes, P. C. (Peter Carlisle), 1940- author. Incorporation of orbital kinematics and the gravity-gradient force field in flexible spacecraft dynamics models / author: P.C. Hughes ; prepared by: Dynacon Enterprises Ltd. Ottawa, Canada : Department of Communications, Space Program, October 1983. 1 online resource (v, 30 pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier DOC contractor report ; DOC-CR-SP-83-052 "Unclassified." "Dynacon report MSAT-13." "Department of Supply and Services Contract no: 01SM.36001-2-2183." Digitized copy from print [produced by Innovation, Science and Economic Development Canada]. Includes bibliographical references (page 30). "Previous reports in this series have treated the dynamics of flexible spacecraft as though the reference orientation was inertially fixed (i.e., not rotating). This is a very good approximation because, although the reference orientation is not precisely inertial, it is 'Earth-pointing' and thus rotates once per orbit. For geostationary communications satellites this represents a rotation of the reference orientation of 2n radians every 24 hours - virtually negligible compared to the circular frequencies of flexible spacecraft modes. Nevertheless, in this report the extra terms associated with the 'inertial force field' caused by the once-per-orbit reference motion are calculated as an extension to the general theory"--Summary, page iii. Artificial satellites Orbits. Artificial satellites Dynamics. Artificial satellites Mathematical models. Artificial satellites Attitude control systems. Artificial satellites in telecommunication. Expandable space structures. Satellites artificiels Orbites. Satellites artificiels Dynamique. Satellites artificiels Modèles mathématiques. Satellites artificiels Systèmes de commande d'orientation. Satellites artificiels dans les télécommunications. Structures flexibles. Canada. Department of Communications. Space Program. Dynacon Enterprises Ltd. DOC contractor report (Canada. Department of Communications) DOC-CR-SP-83-052. (CaOODSP)9.869864 PDF 3.21 MB https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-3-1-83-052-eng.pdf