Occultation of 4UC 365-185633 by (5166) Olson on 2018-08-01 Green O+: Henk Bulder Optics: M305 | Method: VIS | Duration: 6.29,52.67,0 Red O-: Esdert Edens Optics: M235 | Method: VID | Duration: 5.16,52.63,0