2010 AB78 is a Near-Earth asteroid discovered in 2010.[1] It's the first discovered by the Wide-field Infrared Survey Explorer (WISE) space observatory of the many thousands it's expected to discover.[2]
The first observation of 2010 AB78 by WISE was on January 12, 2010, being observed again the next day. The Mauna Kea Observatory observed it the days 18 and 19 of January, allowing the Minor Planet Center to publish a circular the day 22 confirming the discovery[2] The asteroid measures about 1 km in diameter.[3]