Occultation of UCAC4 460-122618 by (59817) 1999 RC21 on 2026-05-27 Red O-: Antoni 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