Star catalogue requirements for satellite geodesy

Abstract

view Abstract Citations References Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Star catalogue requirements for satellite geodesy Fallon, Frederick W. Abstract Optical-Satellite Geodesy is a triangulation solution for the coordinates of a geodetic network. The ob- servations consist of angular directions which are measured with respect to a system of star positions. The ultimate accuracy of such a solution is discussed and is shown to be limited by the accuracy of the stellar reference system; no reduction procedure can, as has been proposed, improve this limiting accuracy. Thus, the desired accuracy of the geodetic solution can be translated into a corresponding positional accuracy requirement for the reference stars; this implies a catalogue with positions of standard deviation about 0'.'3 as adequate for immediate purposes. Criteria for homogeneity and extent of coverage are also considered. The currently available catalogues are reviewed with respect to these criteria. It is seen that the northern celestial hemisphere will be adequately catalogued by the AGK3, but that the southern hemisphere requires a new catalogue program to be undertaken. Publication: The Astronomical Journal Pub Date: June 1967 DOI: 10.1086/110281 Bibcode: 1967AJ.....72..611F full text sources ADS |