Saturnian satellite observations made in Brazil during the 1995 opposition with an astrometric analysis

Details Saturnian satellite observations made in Brazil during the 1995 opposition with an astrometric analysis Saturnian satellite observations made in Brazil during the 1995 opposition with an astrometric analysis

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26a...380..727v&link_type=abstract

Astronomy and Astrophysics, v.380, p.727-733 (2001)

Astronomy and Astrophysics

Astrophysics

20

Saturn, Satellites Of Saturn, Astrometry

Scientific paper

This paper provides an analysis of astrometric measurements of the main Saturnian satellites made thanks to CCD observations performed in 1995 at the Laboratório Nacional de Astrofísica at Itajubá in Brazil. The astrometric reduction is discussed especially the small corrections done here, but most of time neglected elsewhere. A catalog of 6006 differential positions has been obtained. They have been compared to different ephemerides, the Vienne & Duriez ephemerides (TASS 1.7), the Harper & Taylor ephemerides and the Dourneau ephemerides. These observations provide a large set of modern observations, and appear to be of good precision. This accuracy is needed for future use of these data to improve the dynamical models. These positions are included in the data base NSDC dedicated to the natural satellites (ftp://ftp.bdl.fr/pub/NSDC/saturn/raw_data/position/). They are also available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/380/727

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