is a sub-kilometer asteroid, classified as a near-Earth object and potentially hazardous asteroid of the Apollo group.
Description
It was discovered on 26 July 1998 by the Spacewatch program and subsequently lost. It was re-discovered by the Near-Earth Asteroid Tracking (NEAT) project on 31 August 2002, as . It was removed from the Sentry Risk Table on 8 August 2002. It has a well determined orbit with an observation arc of more than 10 years. It is included in the Minor Planet Center list of Potentially Hazardous Asteroids (PHAs) as it comes to within 0.05 AU of Earth periodically. It is also a Mars crossing asteroid.
+H < 22 asteroids passing less than 1 LD from EarthAsteroidDateNominal approach distance (LD)Min. distance (LD)Max. distance (LD)Absolute magnitude (H)Size (meters) 1914-12-31 0.606 0.604 0.608 19.4 279–900 1918-09-17 0.911 0.909 0.913 17.9 556–1795 1925-08-30 0.903 0.901 0.905 18.5 443–477 1971-04-11 0.616 0.587 0.651 21.2 122–393 1981-11-04 0.818 0.813 0.823 21.4 111–358 2001-11-08 0.454 0.318 3.436 20.7 153–494 2011-11-08 0.845 0.845 0.845 21.9 320–400 2028-06-26 0.647 0.647 0.647 18.2 921–94399942 Apophis 2029-04-13 0.0981 0.0963 0.1000 19.7 310–340 2065-05-28 0.865 0.856 0.874 20.7 153–494 2075-11-08 0.592 0.499 0.752 21.9 320–400 2101-01-02 0.621 0.615 0.628 21.0 133–431101955 Bennu 2135-09-25 0.780 0.308 1.406 20.19 472–512 2140-12-01 0.634 0.631 0.637 19.3 427–593 2148-01-22 0.771 0.770 0.771 21.1 127–411 2156-12-16 0.998 0.955 1.215 21.6 101–327
See also 99942 Apophis
Notes
This is assuming an albedo of 0.25–0.05.
References
External links List Of Apollo Minor Planets, Minor Planet Center data at MPC List of Potentially Hazardous Asteroids (PHAs)