Detailed 168 Page 1997 Report On Mission Had 5 Medium Range flybyes of Mimas
1 25,000-50,000 km pass and 4 50,000-100,000 km passes. Voyager was 88,000 km.
Passage to a Ringed World
The information is probably out of date though due to the changes caused by ESA's Hugen's boo-boo.
Similarly dated info is available at 1997 Press Kit
Another interesting pdf source of Saturn info is Educator's Q&A
Regards,
Mark
