My manager sent round a link to a beta version of a tool on the NASA-JPL web site called Eyes on the Solar System which, among other things, lets you visualize the movement of a spacecraft as it orbits a planet. Of course, I had to have a look at a Cassini manoeuvre. I picked one of the first calibration rolls that I ever designed, which took place on 4 December 2008.
Watching it made me go a bit teary-eyed. I helped make that happen, on a spacecraft orbiting a planet over a billion kilometres away. Wow.
Watch it here. The roll period starts at about 4 AM.