Discovered by Catalina Sky Survey Alternative names none Discovered 11 February 2007 Asteroid group Apollo asteroid | Discovery date February 11, 2007 Observation arc 3258 days (8.92 yr) Absolute magnitude 17.6 Discoverer Catalina Sky Survey | |
Minor planet category Apollo asteroid,
Earth-crosser asteroid
Mars-crosser asteroid Aphelion 5.11769 AU (765.596 Gm) | ||
2007 CA19 (also written 2007 CA19) is a near-Earth asteroid. It led the impact hazard list, with a Torino Scale impact risk value of 1, for one week, ending on February 19, 2007. Before and after 2007 CA19, 99942 Apophis was the object with the highest Palermo Scale rating. With an observation arc of 4.8 days, 2007 CA19 had a Palermo Scale of −0.88.
2007 CA19 was discovered on February 11, 2007 by the Catalina Sky Survey at the University of University of Arizona. The object is estimated at 966 metres in diameter with a mass of a 1.2x1012 kg. Until February 15, it had an impact probability of 1/625000 for the day March 14, 2012. Additional observations through February 19 decreased the impact probability to ~1 in 300 million, making it of negligible concern. It was removed from the Sentry Risk Table on February 22, 2007.
2007 CA19 passed about 0.007 AU (1,000,000 km; 650,000 mi) from Venus on July 6, 1946.