Occultation of 4UC 535-014137 by (3642) Frieden on 2019-03-25 Green O+: Philip Denyer Optics: M235 | Method: VID | Duration: 1.60 0.19,51.55,0 Green O+: Peter Tickner Optics: M356 | Method: CCD | Duration: 1.50 -0.92,51.43,0