Occultation of 4UC 491-028300 by (2111) Tselina on 2018-12-26 Green O+: Alberto Ossola Optics: M230 | Method: VID | Duration: 2.33 8.92,46.00,0 Red O-: Stefano Sposetti Optics: M280 | Method: VID | Duration: 9.02,46.23,0 Red O-: Andrea Manna Optics: M200 | Method: VID | Duration: 8.92,46.18,0