Asteroid 2007 TU24, discovered by the Catalina Sky Survey on October 11, 2007 has closely approached the Earth to within 1.4 lunar distances (334,000 miles) on 2008 Jan. 29 08:33 UT. We have observed this object from Remanzacco Observatory with a 45cm f/4.4 reflector and CCD FLI IMG 1001E. Below You can find our video composed of 100 images x 2 seconds showing this asteroid (magnitude 10) from 20h29m to 20h 45m UT.
2007 TU24 will be the closest currently known approach by a potentially hazardous asteroid of this size (between 150 and 600 meters in diameter) or larger until 2027.
Giovanni Sostero, Luca Donato ed Ernesto Guido