Occultation of 4UC 407-054634 by (29578) 1998 FU53 on 2021-04-22 Green O+: Jean Bourgeois Optics: M200 | Method: VID | Duration: 0.64 5.04,50.09,0 Red O-: O. Schreurs et al Optics: M406 | Method: VID | Duration: 5.44,50.52,0