Occultation of 4UC 397-091584 by (1833) Shmakova on 2020-07-27 Green O+: Andreas Tazreiter Optics: M406 | Method: VID | Duration: 1.28 14.73,47.90,0 Red O-: Michele Bigi Optics: M200 | Method: VID | Duration: 10.14,44.03,0