Cassini ISS mutual event astrometry of the mid-sized Saturnian satellites 2005–2012 N. J. Cooper, C. D. Murray, V. Lainey, R. Tajeddine, M. W. Evans and G. A. Williams A&A, 572 (2014) A43 Published online: 26 November 2014 DOI: 10.1051/0004-6361/201424555