Occultation of 4UC 577-016317 by (1517) Beograd on 2021-11-30 Green O+: Stefano Sposetti Optics: M420 | Method: CCD | Duration: 3.50 9.02,46.23,0 Green O+: Andrea Manna Optics: M200 | Method: VID | Duration: 3.20 8.92,46.18,0 Green O+: Alberto Ossola Optics: M230 | Method: VID | Duration: 3.52 8.92,46.00,0 Green O+: Gerard Vaudescal Optics: M254 | Method: CCD | Duration: 3.39 -0.01,43.21,0 Green O+: Yves Argentin Optics: M305 | Method: VID | Duration: 3.20 0.06,43.14,0