Discovered by Catalina Sky Survey Alternative names none Aphelion 3.6810 AU (550.67 Gm) Discovered 5 April 2010 Argument of perihelion 34.309° Asteroid group Apollo asteroid | Discovery date April 5, 2010 Minor planet category Apollo, NEO Semi-major axis 2.3052 AU (344.85 Gm) Inclination 9.7537° Mean anomaly 223.11° Discoverer Catalina Sky Survey | |
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Similar 2010 AL30, 2009 DD45, 2011 MD, (29075) 1950 DA, (308635) 2005 YU55 | ||
2010 GA6 is an Apollo near-Earth asteroid discovered by the Catalina Sky Survey on April 5, 2010, four days before a close approach to Earth. It is a relatively small space rock about 22 meters (72 ft) wide. With a 1-day observation arc, the asteroid had a 1 in 6 million chance of impacting in 2074. It was removed from the Sentry Risk Table on April 8, 2010. The asteroid passed Earth at a distance of about 0.0029 AU (430,000 km; 270,000 mi) at 02:07 UT on April 9, 2010 (7:06 pm EST on April 8). A stony asteroid 22 meters in diameter can be expected to create an air burst with the equivalent of 300 kilotons of TNT at an altitude of 21 kilometers (69,000 ft). Generally only asteroids larger than 35 meters across pose a threat to a town or city.