Interesting news tonight! ATV2 conducted a debris avoidance manoeuvre this evening at 18:30 UT (20:30 CEST). ESA’s Mike Steinkopf, sitting at the mission director’s console position at ATV-CC this evening, sent in this note:

Earlier today, NASA flight dynamics predicted an object conjunction with a miss distance of 50m. The ATV boost (thruster burn) was planned at 1.5 m/s, and took ATV onto a completely safe orbit.

ATV has enough spare fuel on board to allow for such manoeuvres.