(66391)_1999_KW4 | epoch | 2004-07-14 (66391)_1999_KW4 | escapeVelocity | 0 (66391)_1999_KW4 | orbitalPeriod | 16244700.0 (66391)_1999_KW4 | periapsis | 29919600000.0 (66391)_1999_KW4 | density | 2.0 (gramPerCubicCentimetres)
The epoch date for 66391 1999 KW4, which has a density of 2 gm per cu cm, is 2004.07.14. Its escape velocity is zero, it has an orbital period of 16244700.0 and a periapsis of 29919600000.0.