"Two asteroids will pass within the Moon's distance from Earth on Wednesday, Sept. 8. NASA scientists will be available for satellite interviews Tuesday, Sept. 7, and Wednesday morning to discuss these near- Earth objects.
The Catalina Sky Survey near Tucson, Ariz., discovered both objects on Sunday, Sept. 5. The Minor Planet Center in Cambridge, Mass., reviewed the observations and determined the preliminary orbits. The center's personnel concluded both objects would pass within the distance of the Moon to Earth, approximately 240,000 miles. The asteroids should be visible with moderate-sized amateur telescopes."