(66391)_1999_KW4 | epoch | 2004-07-14 (66391)_1999_KW4 | escapeVelocity | 0 (66391)_1999_KW4 | orbitalPeriod | 16244700.0 (66391)_1999_KW4 | periapsis | 29919600000.0
The epoch date for (66391) 1999 KW4 is 2004-07.14 and it has an escape velocity of 0. It has an orbital period of 16244700.0 and a periapsis of 29919600000.0.