A comparison of astrometric measurement techniques as applied to minor planets

Details A comparison of astrometric measurement techniques as applied to minor planets A comparison of astrometric measurement techniques as applied to minor planets

Feb 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982cemec..26..207d&link_type=abstract

(Conference on Analytical Methods and Ephemerides: Theory and Observations of the Moon and Planets, Namur, Belgium, July 28-31,

Astronomy and Astrophysics

Astronomy

5

Asteroids, Astrometry, Celestial Reference Systems, Solar Orbits, Asteroids, Techniques, Comparisons, Positon(Location), Data, Procedure, Motion, Earth-Based Observations, Astrometry, Hypatia 238 Asteroid

Scientific paper

Differential and absolute minor planet positions previously applied to the study of a Fundamental Reference System have had accuracies of the order of + or - 0.2 arcsec. Relative positions have been obtained to much higher accuracy, but that accuracy has not been applied directly to the formation of a celestial coordinate system. The regular motions of minor planets along long arcs in the sky are more accurately known than any single observed position. Thus, the dynamics of minor planets, coupled with new techniques of observation and reduction, will bring an independent component to bear on the problem of testing the Fundamental Reference System. Preliminary results based on measurements of Hypatia (238) are presented.

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