Just a note: the Nomenclature Committee has officially named the 2007 Peru impactor "Carancas". See the entry at http://tin.er.usgs.gov/meteor/index.php?code=45817 jeff Dr. Jeffrey N. Grossman phone: (703) 648-6184 US Geological Survey fax: (703) 648-6383 954 National Center Reston, VA 20192, USA