Reduction of photographic observations of asteroids to the reference frame of a single catalog

Details Reduction of photographic observations of asteroids to the reference frame of a single catalog Reduction of photographic observations of asteroids to the reference frame of a single catalog

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sosyr..42..144c&link_type=abstract

Solar System Research, Volume 42, Issue 2, pp.144-153

Astronomy and Astrophysics

Astronomy

1

95.10.Jk, 95.10.Eg, Astrometry And Reference Systems, Orbit Determination And Improvement

Scientific paper

In 2000, the last international program of photographic observations of selected asteroids aimed at the determination of the mutual orientation of the dynamic and stellar coordinate systems came to an end. The Institute of Applied Astronomy of the Russian Academy of Sciences collected more than 25 000 observations for 15 asteroids spanning from 1949 through 1995. These observations were reduced to the reference frame of the Hipparcos catalog using dependencies published along with observations. The accuracy of observations of selected asteroids was 0.30 arcsec, which is comparable to that of modern CCD observations of minor planets. The observations are available at ftp://quasar.ipa.nw.ru/pub/SMP . An important advantage of these observations is that they are already reduced to the reference frame of a single catalog. Our criteria for the quality of the reduction methods and the accuracy of the observations are based on estimating the parameters of the orientation of the reference frames of the PPM and Hipparcos catalogs with respect to DE200/LE200. The most reliable results are those obtained when reducing old optical observations along with modern ground-based and space-borne observations.

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