Occultation of 4UC 617-013118 by (773) Irmintraud on 2020-04-18 Green O+: E. Frappa/A. Klotz Optics: M250 | Method: CCD | Duration: 1.73 6.92,43.75,0 Red O-: Arnaud Claisse Optics: M250 | Method: CCD | Duration: -1.50,49.07,0