Occultation of 4UC 391-054298 by (15454) 1998 YB3 on 2019-02-12 Green O+: Pierre Le Cam Optics: M500 | Method: CCD | Duration: 1.58 0.79,46.93,0 Red O-: S. Meister et al Optics: M500 | Method: CCD | Duration: 8.57,47.52,0