Occultation of 4UC 542-002567 by (591) Irmgard on 2022-08-10 Green O+: William Stewart Optics: M279 | Method: VID | Duration: 2.80 -2.57,53.06,0 Red O-: Antoni Selva Optics: M500 | Method: VID | Duration: 2.09,41.55,0