Matches in DBpedia 2014 for { ?s ?p (308242) 2005 GO21 is a large near-Earth asteroid and potentially hazardous object. It has a well determined orbit with an observation arc of 7 years and an uncertainty parameter of 0. It was discovered on 1 April 2005 by the Siding Spring Survey at an apparent magnitude of 18.1 using the 0.5-metre (20 in) Uppsala Southern Schmidt Telescope.Based on an absolute magnitude of 16.4, the asteroid has an estimated diameter of 1.6 km (within a factor of two).. }
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- (308242)_2005_GO21 comment "(308242) 2005 GO21 is a large near-Earth asteroid and potentially hazardous object. It has a well determined orbit with an observation arc of 7 years and an uncertainty parameter of 0. It was discovered on 1 April 2005 by the Siding Spring Survey at an apparent magnitude of 18.1 using the 0.5-metre (20 in) Uppsala Southern Schmidt Telescope.Based on an absolute magnitude of 16.4, the asteroid has an estimated diameter of 1.6 km (within a factor of two).".