CCD observations of Phoebe

Citation
Ch. Veiga et al., CCD observations of Phoebe, ASTR AST SS, 142(1), 2000, pp. 81-84
Citations number
6
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
ISSN journal
03650138 → ACNP
Volume
142
Issue
1
Year of publication
2000
Pages
81 - 84
Database
ISI
SICI code
0365-0138(200002)142:1<81:COOP>2.0.ZU;2-3
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 calibrat ion the USNO-A2.0 Catalogue is used. All positions are compared with those calculated by Jacobson (1998a) and Bec-Borsenberger & Rocher (1982). The re siduals have mean and standard deviation smaller than 0".5, in the x and y directions. The distribution of residuals is suggestive of the need of an i mprovement for the orbit calculations.