Occultation of 4UC 486-134364 by (712) Boliviana on 2021-09-14 Green O+: Konrad Guhl Optics: M306 | Method: CCD | Duration: 11.42 13.19,53.27,0 Red O-: Christian Weber Optics: M150 | Method: CCD | Duration: 13.42,52.52,0