Occultation of 4UC 425-062889 by (971) Alsatia on 2022-02-23 Green O+: Karel Halir Optics: M507 | Method: VID | Duration: 8.58 13.60,49.75,0 Yellow O?: Michal Rottenborn Optics: M254 | Method: CCD | Duration: 8.75 13.33,49.71,0