Out Of The Cradle notes a new program to look for errant objects:

When fully operational, the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) project will deeply scan most of the night sky several times a month. About three-quarters of the sky are visible from the Hawaiian Islands, and Pan-STARRS will use four linked telescopes connected to its enormous cameras to take broad pictures of unprecedented detail. Objects as dim as 24th magnitude