Occultation of 4UC 543-005836 by (219) Thusnelda on 2021-08-15 Green O+: Stefano Sposetti Optics: M420 | Method: CCD | Duration: 0.72 9.02,46.23,0 Red O-: Alberto Ossola Optics: M230 | Method: VID | Duration: 8.92,46.00,0