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- W4241569002 abstract "The observation of minor planets by Hipparcos offers the opportunity to obtain high precision positions for some minor planets. About fifty minor planets are on the programme. Their ephemerides had to be improved in order to reach a precision of 1 arsec and occultations by the Earth and the Moon had to be predicted. From the position of a minor planet on reference great circles at different times better values of the initial position and velocity will be deduced but the reduction of the observations of the minor planets have to take into account the displacement of the photocentre relative to the centre which is due to the shape, the phase effect and the scattering properties of the surface. For some very small planets considered as star like this diplacement will be small and the precise positions obtained will allow to position the dynamical reference system relative to the Hipparcos system. For the bigger minor planets the observations by Hipparcos may give informations on the shape and scattering properties of the surface." @default.
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- W4241569002 date "1990-01-01" @default.
- W4241569002 modified "2023-10-18" @default.
- W4241569002 title "The Reference Frame Determined From the Observation of Minor Planets by Hipparcos" @default.
- W4241569002 doi "https://doi.org/10.1017/s0074180900087015" @default.
- W4241569002 hasPublicationYear "1990" @default.
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