Occultation of 4UC 353-084315 by (1269) Rollandia on 2021-06-22 Green O+: Antoni Selva Optics: M500 | Method: VID | Duration: 6.88 2.09,41.55,0 Yellow O?: Carles Schnabel Optics: M400 | Method: VID | Duration: 7.04 1.87,41.49,0