Occultation of 4UC 449-000260 by (167) Urda on 2021-12-16 Green O+: Arnaud Leroy Optics: M300 | Method: CCD | Duration: 3.50 2.71,48.90,0 Red O-: Konrad Guhl Optics: M306 | Method: CCD | Duration: 13.19,53.27,0