\documentstyle{article}
\title{CCD Astrometry of Saturn's satellites 1990-94 from La Palma}
\author{David Harper \\ Astronomy Unit, Queen Mary and  Westfield College}
\date{}

\begin{document}
\maketitle

  We have obtained more than 1200 measurements of the positions of the major
  satellites of Saturn during the apparitions of 1990, 1991, 1993 and 1994
  using CCD detectors attached to the 1-metre Jacobus Kapteyn Telescope on
  La Palma.  Comparison of the observations with the best current orbital
  models shows that it is possible to attain root-mean-square residuals
  as small as 0.08 arc-seconds.  In this paper, we discuss the problems
  associated with the use of CCD devices for satellite astrometry and we
  propose an observing strategy based upon our experience with the CCD
  technology.

\end{document}
