Occultation of 4UC 538-047455 by (160363) 2003 YP107 on 2022-04-12 Green O+: Peter Delincak Optics: M400 | Method: CCD | Duration: 0.31 18.70,49.40,0 Red O-: Peter Nosal Optics: M250 | Method: CCD | Duration: 19.30,48.56,0