On February 15, a 57-metre (185-feet) asteroid, 2012 DA14, will skim the planet at just 34,500 kilometres (21,600 miles). In other words, it will spookily fly by inside the orbit of geostationary satellites. “It’s going to be the closest predicted flyby of an asteroid,” says Mark Bailey, director of the Armagh Observatory in Northern Ireland. “Because it is coming so close, even amateur astronomers will be able to watch it as it moves against background stars, and it may be visible through binoculars.”
If it’s flying inside geosynch satellites, it means we be able to get pictures looking down at the asteroid, with Earth in the background.