Occultation of 4UC 513-041170 by (1783) Albitskij on 2017-04-22 Red O-: C. Perello/A. Selva Optics: M500 | Method: VID | Duration: 2.09,41.55,0 Red O-: Carles Schnabel Optics: M400 | Method: VID | Duration: 1.87,41.49,0