Occultation of 4UC 557-034202 by (971) Alsatia on 2020-11-04 Green O+: Simon Kidd Optics: M350 | Method: CCD | Duration: 7.27 -0.06,51.95,0 Green O+: Peter Tickner Optics: M356 | Method: CCD | Duration: 11.21 -0.92,51.43,0 Red O-: Tim Haymes Optics: M279 | Method: CCD | Duration: -1.31,51.93,0 Red O-: John Talbot Optics: M303 | Method: VID | Duration: -1.28,51.63,0 Red O-: Pierre Le Cam Optics: M250 | Method: CCD | Duration: 0.79,46.93,0