Occultation of 4UC 411-133446 by (420) Bertholda on 2022-12-04 Green O+: Pascal Andre Optics: M200 | Method: CCD | Duration: 4.45 1.61,43.54,0 Green O+: Gerard Vaudescal Optics: M254 | Method: CCD | Duration: 4.90 -0.01,43.21,0 Green O+: Yves Argentin Optics: M305 | Method: VID | Duration: 4.64 0.06,43.14,0