(66391)_1999_KW4 | escapeVelocity | 0 (66391)_1999_KW4 | apoapsis | 162164091.8388 (kilometres) (66391)_1999_KW4 | density | 2.0 (gramPerCubicCentimetres)
With an escape velocity of 0, (66391) 1999 KW4, has a density of 2.0 gm per cu cm and an apoapsis measurement of 162164091.8388 (kilometres).