The magnitude 17.3 asteroid (1057) Wanda will occult the magnitude 6.9 star HD 110418 in the constellation Virgo between 01:08 - 01:13 UT, 8th July, 2012.
The 3 second event is visible from the US.
Google earth file: Asteroid (1057) Wanda.kmz (2kb, kmz)
Position (J2000): R.A. 12 41 57.7011 | Dec. -07° 30' 01.651''