http://www.wolframalpha.com/input/?i=distance+pluto+%2F+ligh...
http://www.wolframalpha.com/input/?i=distance+voyager+1+%2F+...
P.S. You are correct.
"astronomical units per day: 173"
http://en.wikipedia.org/wiki/Astronomical_unit#Examples
"94 AU: Termination shock between Solar winds/Interstellar winds/Interstellar medium"
I think astronomers would prefer data move back and forth faster, but they're used to waiting that long and more for things to happen.