|Discovered by||Catalina Sky Survey|
|Discovery date||February 11, 2007|
|Minor planet category||Apollo asteroid,
|Epoch April 10, 2007 (MJD 54200)|
|Semi-major axis||2.03517 AU|
|Orbital period||1060.47 days|
|Longitude of ascending node||178.802°|
|Argument of perihelion||95.374°|
|Mean density||2.6 g/cm³|
|Absolute magnitude (H)||17.9|
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.
- "Earth Impact Risk Summary: 2007 CA19". Wayback Machine: NASA/JPL Near-Earth Object Program Office. (1.6e-06 = 1 in 625,000 chance)
- "Date/Time Removed". NASA/JPL Near-Earth Object Program Office. Retrieved 2013-07-27.
- "JPL Close-Approach Data: (2007 CA19)". 2008-02-14 last obs (arc=5.85 yr). Retrieved 2013-09-07.