Occultation of 4UC 520-015037 by (614) Pia on 2018-01-30 Red O-: Jan-Maarten Winkel Optics: M310 | Method: VID | Duration: 6.26,51.90,0 Red O-: Henk De Groot Optics: M356 | Method: VID | Duration: 5.80,51.83,0