Occultation of 4UC 475-051755 by (259) Aletheia on 2019-03-31 Green O+: W. Burzynski et al Optics: M300 | Method: VID | Duration: 16.55 23.10,53.07,0 Red O-: Maciej Czepita Optics: M152 | Method: VID | Duration: 14.39,53.50,0 Red O-: Mariusz Ksiazkiewicz Optics: M200 | Method: CCD | Duration: 16.95,52.53,0 Red O-: Christian Weber Optics: M203 | Method: VID | Duration: 13.43,52.52,0 Red O-: Tomasz Kluwak Optics: M279 | Method: CCD | Duration: 16.64,52.44,0 Red O-: Anna Marciniak Optics: M400 | Method: CCD | Duration: 17.08,52.28,0