Occultation of TYC 1866-01091-1 by (177) Irma on 2011-09-13 Green O+: Stefan Gajdos Optics: M600 | Method: CCD | Duration: 3.37 17.27,48.37,0 Green O+: GB Casalnuovo et al Optics: M300 | Method: VID | Duration: 2.90 11.35,46.49,0 Green O+: Simone Bolzoni Optics: M300 | Method: VIS | Duration: 3.20 8.17,45.37,0 Green O+1: O. Canales/F. Campos Optics: M203 | Method: VID | Duration: 3.58 -1.19,41.42,0 Green O+2: O. Canales/F. Campos Optics: M203 | Method: VID | Duration: 3.44 -1.19,41.42,0 Red O-: Peter Delincak Optics: M355 | Method: CCD | Duration: 18.70,49.40,0 Red O-: Gerhard Dangl Optics: M254 | Method: VID | Duration: 15.24,48.79,0 Red O-: Stefano Sposetti Optics: M280 | Method: VID | Duration: 9.02,46.23,0 Red O-: Andrea Manna Optics: M300 | Method: VIS | Duration: 8.92,46.18,0 Red O-: E. Frappa/A. Klotz Optics: M250 | Method: CCD | Duration: 6.92,43.75,0