Occultation of 1B 830-240853611 by (90482) Orcus on 2011-02-06 Red O-: J. Lecacheux et al Optics: M1050 | Method: CCD | Duration: 0.14,42.94,0 Red O-: R. Casas et al Optics: M500 | Method: CCD | Duration: 2.09,41.55,0 Red O-: Carles Schnabel Optics: M400 | Method: VID | Duration: 1.87,41.49,0 Red O-: J. Fabregat et al Optics: M600 | Method: VID | Duration: -1.10,39.95,0