Occultation of 4UC 421-138077 by (1728) Goethe Link on 2021-06-16 Green O+: Peter Delincak Optics: M400 | Method: CCD | Duration: 2.18 18.70,49.40,0 Green O+: Marian Urbanik Optics: M400 | Method: CCD | Duration: 1.61 18.77,49.31,0