Occultation of 4UC 657-025602 by (1437) Diomedes on 2021-08-20 Green O+: Gregor Krannich Optics: M350 | Method: CCD | Duration: 3.60 10.85,48.09,0 Green O+: Stefan Meister Optics: M500 | Method: CCD | Duration: 5.02 8.57,47.52,0