2004 FH is a near-Earth asteroid that was discovered on March 15, 2004, by the NASA-funded LINEAR asteroid survey. The object is roughly 30 metres in diameter and passed just 43,000 km (27,000 mi) above the Earth's surface on March 18, 2004, at 22:08 UTC; making it the 11th closest approach to Earth recorded as of 21 November 2008 Read more
Asteroid 2004 FH had a close encounter with our planet on March 18th 2004, 2200 GMT. It came 43,000 km from the Earth's surface! That just slightly higher than most geosynchronous satellites , that orbit at an altitude of 35,800 km.