Occultation of TYC 0576-01087-1 by (420) Bertholda on 2017-01-14 Green O+: Pietro Baruffetti Optics: M200 | Method: VID | Duration: 3.94 10.13,44.02,0 Green O+: Joan Rovira Optics: M200 | Method: VID | Duration: 2.36 2.10,41.82,0 Red O-: C. Perello/A. Selva Optics: M500 | Method: VID | Duration: 2.09,41.55,0