A&A Supplement series, Vol. 121, January 1997, 65 - 69

Received February 19; accepted May 15, 1996

CCD astrometry of Saturn's satellites 1990-1994

D. Harper, C.D. Murray, K. Beurle, I.P. Williams, D.H.P. Jones, D.B. Taylor, - S.C. Greaves

Send offprint request: D. Harper

  Astronomy Unit, School of Mathematical Sciences, Queen Mary and Westfield College, Mile End Road, London E1 4NS, UK
  Royal Greenwich Observatory, Madingley Road, Cambridge CB3 0EZ, UK

Abstract:

In this paper, we publish 1206 measurements of positions of the major satellites of Saturn made in 1990, 1991, 1993 and 1994 using CCD detectors attached to the 1-metre Jacobus Kapteyn Telescope on the island of La Palma. Analysis of the data as inter-satellite positions shows that the observations of Tethys, Dione, Rhea and Titan have root-mean-square residuals of , corresponding to 500 km at the distance of Saturn.

keywords: satellites of saturn -- astrometry

 
• 1. Introduction
• 2. The observing campaigns
• 3. Methods of calibration
• 4. Format of the observations
• 5. The observations
• 6. Analysis of the observations
• 7. Conclusions
• References