(66391)_1999_kw4 | epoch | 2004-07-14 <tsp> (66391)_1999_kw4 | escapevelocity | 0 <tsp> (66391)_1999_kw4 | orbitalperiod | 162447000 <tsp> (66391)_1999_kw4 | periapsis | 299196000000 <tsp> (66391)_1999_kw4 | density | 20 (grampercubiccentimetres) <sep> 66391 moshup , provisional designation 1999 kw4, is a binary asteroid, classified as a near-earth object and potentially hazardous asteroid of the aten group, approximately 13 kilometers in diameter it was discovered on 20 may 1999, by lincoln near-earth asteroid research (linear) at the lincoln laboratory's experimental test site in socorro, new mexico, united states it is a mercury-crosser that comes extremely close to the sun at a perihelion of 02 au 
(66391) 199 kw4 . with the epoch date of july 14th 2004 and an escape velocity of 0.0. has an orbital period of 16244700.0. this asteroid has a periapsis of 29919600000.0 and a density of 2.0 grams per cubic centimetre.no information