CCD astrometric observations of Saturnian satellites

Astrometric positions of the first eight largest Saturnian satellites and the Lagrangian satellites Helene, Telesto and Calypso are presented from 493 CCD frames taken at the oppositions in 1995 through 1999. The images were obtained over 27 nights. Observed positions are compared with the calculated ones from Vienne and Duriez TASS 1.7 for the large satellites and from JPL positions for the Lagrangian satellites. The rms is about 0$\farcs$12 for the former but 0$\farcs$20 for Iapetus and 0$\farcs$28 for Hyperion. For the Lagrangian satellites it is about 0$\farcs$21 for Helene, 2$\farcs$02 for Telesto and 0$\farcs$60 for Calypso