Authors: Veiga C. H., Vieira Martins R., and Andrei A. H.
Year: 2000
Title: CCD observations of Phoebe
Journal: Astronomy and Astrophysics Supplement Series
Volume: 142
Pages: 81-84
Keywords: Saturn, Phoebe, observation, data, position, CCD
Abstract: Astromeric CCD positions of the Saturnian satellite Phoebe obtained from 60 frames taken in 10 nights are presented. The observations were distributed between 5 missions in the years 1995 to 1997. For the astrometric calibration the USNO-A2.0 Catalogue is used. All positions are compared with those calculated by Jacobson (1998a) and Bec-Borsenberger & Rocher (1982). The residuals have mean and standard deviation smaller than 0farcs 5, in the x and y directions. The distribution of residuals is suggestive of the need of an improvement for the orbit calculations. Based on observations made at Laboratório Nacional de Astrofísica/CNPq/MCT-Itajubá-Brazil. Please send offprint requests to C.H. Veiga. Table 1 is only available at http://www.edpsciences.org
%F: Observatório Nacional, Rua Gal. José Cristino 77, 20921-400 Rio de Janeiro, Brazil cave@on.br orrvm@on.br
Bibliogaphic Code: 2000A%26AS..142...81V
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