Occultation of 4UC 496-054920 by (474) Prudentia on 2020-02-07 Green O+: Pierre Le Cam Optics: M250 | Method: CCD | Duration: 0.75 0.79,46.93,0 Red O-: Thierry Midavaine Optics: M356 | Method: CCD | Duration: -0.41,47.98,0