Template: Infobox Asteroid / Maintenance / Error 2
( 101955 ) Bennu is an asteroid of the Apollo - type, which was discovered on 11 September 1999 under the LINEAR project. The diameter is about 510 m. The asteroid is extensively observed by the Arecibo Observatory and the Goldstone Deep Space Communications Complex.
A study by Andrea Milani calculated a series of potential collisions with the Earth in the period 2169-2199. , The probability of an impact depends on the hitherto poorly known physical properties of the asteroid, but is less than 0.07 %. In order to give precise details, the asteroid was observed from 1999 to 2011 in order to get a more accurate idea of the nature and structure and to assess the impact of the Yarkovsky effect on the railway better. So could a density of 0.97 t / m³ at a weight of 62 million tons by the measured path deviation of 160 km can be determined.
Over 8,000 students suggestions of names for the asteroid sent a case of a competitive NASA. On 1 May 2013, the official proper name Bennu was announced.