(66391)_1999_KW4 | epoch | 2004-07-14 (66391)_1999_KW4 | orbitalPeriod | 16244700.0 (66391)_1999_KW4 | apoapsis | 162164091.8388 (kilometres)
The epoch date for 66391 1999 KW4, which has an orbital period of 16244700, is 2004-07.14. The apoapsis of 1999KW4 is 162,164,091.8388 kilometres.