Occultation of 4UC 638-039178 by (13) Egeria on 2021-04-29 Green O+: Michal Rottenborn Optics: M254 | Method: CCD | Duration: 5.61 13.33,49.71,0 Green O+: Jiri Polak Optics: M303 | Method: CCD | Duration: 5.26 13.32,49.69,0