(179806) 2002 TD66


Asteroid::jpldata    Title::binary    Binary::october    Removed::minor    Category::meters    Earth::known


2002 TD66 (also written 2002 TD66) is a near-Earth asteroid, discovered on October 5, 2002, by the LINEAR project.<ref name=jpldata/> It was announced on October 7, 2002, and appeared later that day on the JPL current risk page.

Due to the proximity of its orbit to Earth and its estimated size, this object has been classified as a potentially hazardous asteroid (PHA) by the Minor Planet Center in Cambridge, Massachusetts. In November 2006 there were 823 PHAs known. As of October 2011, there are 1261 PHAs known.<ref name=NASA_PHA/> 2002 TD66 was removed from the Sentry Risk Table on October 10, 2002.<ref name="removed"/> A Doppler observation<ref name=jpldata/> has helped produce a well known trajectory with a condition code (Uncertainty Parameter U) of 0.<ref name=jpldata/>

Based on an absolute magnitude (H) of 20.2,<ref name=jpldata/> the asteroid is estimated to be between 270 and 590 meters in diameter. Radar astronomy shows it is a contact binary asteroid with a diameter of 300 meters and a rotation period of 9.5 hours.<ref name="Binary"/>

On February 26, 2008, 2002 TD66 passed {{safesubst:#invoke:convert|convert}} from Earth.<ref name=jpl-close/> The asteroid also comes close to Venus, Mars, and dwarf planet Ceres.<ref name=jpl-close/>

(179806) 2002 TD66 sections
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