Cassini ISS astrometry of the Saturnian satellites: Tethys, Dione, Rhea, Iapetus, and Phoebe 2004–2012R. Tajeddine, V. Lainey, N. J. Cooper and C. D. MurrayA&A, 575 (2015) A73DOI: https://doi.org/10.1051/0004-6361/201425605