And now that the boxes are apparently about to launch, we've been gifted with what look to be the actual spec sheets for two new models, the D620 and D820 (left to right, above).
Unlike a conventional spacecraft, which would be navigated on the basis of signals sent to and from ground controllers, Deep Space 1 is programmed to make its own left-right, up-down decisions on data from sensors that look at the stars to track position and guide course changes.