Planetary Society Blog

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On the masses and motions of mini-moons: Pandora's not a "shepherd," but
Prometheus still is

Posted: 03 Jul 2014 10:04 PM PDT
http://www.planetary.org/blogs/emily...shepherds.html

As Cassini celebrates 10 years at Saturn, we're beginning to see its
long-term observations of Saturnian moons bear fruit. A surprising new
result: While Prometheus exerts control over the F ring and Atlas, Pandora
-- long thought to be a shepherd of the F ring -- does not.