(66391)_1999_KW4 | apoapsis | 162164091.8388 (kilometres) (66391)_1999_KW4 | density | 2.0 (gramPerCubicCentimetres)
(66391) 1999 KW4 has an apoapsis of 162164091.8388 kilometres and a density of 2.0 gram per cubic centimetres.