Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26as...86..299b&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 86, no. 2, Dec. 1990, p. 299-349.
Astronomy and Astrophysics
Astronomy
6
Astrometry, Ephemerides, Hipparcos Satellite, Spaceborne Astronomy, Stellar Motions, Astronomical Catalogs, European Space Programs, Orbital Elements
Scientific paper
To be observed by Hipparcos, the position of each object has to be known with an accuracy of 1 arcsecond and its magnitude with an accuracy of 0.5 mag. Therefore, the orbital elements of 48 selected minor planets of the Hipparcos mission, have been improved in order to extrapolate their ephemerides with the accuracy required. These ephemerides for the year 1991 are given here, referred to the two reference frames: J2000 and 1950.0. The orbital elements which have been used to compute the ephemerides are also given.
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