Check this story!
http://news.bbc.co.uk/1/hi/sci/tech/2321081.stm
Also worth checking is the original, at http://www.satcom.freeserve.co.uk/docking.htm
Not bad. Wonder if he snapped it as it passed or was slewing at a very high speed ?!
I'd guess, given the kit and software he mentions, that he was using a computer-controlled slew to keep the beast in view...