Occultation of TYC 2426-00023-1 by (519) Sylvania on 2007-04-26 Red O-: Helmut Denzau Optics: M356 | Method: VID | Duration: 10.55,54.34,0 Red O-: O. Farago/H. Bauer Optics: M350 | Method: VID | Duration: 9.20,48.78,0 Red O-: Helmut Michels Optics: M406 | Method: VID | Duration: 8.83,48.62,0 Red O-: Michael Parl Optics: M203 | Method: VID | Duration: 11.72,48.13,0 Red O-: Mike Kohl Optics: M150 | Method: VIS | Duration: 8.91,47.27,0 Red O-: Paolo Corelli Optics: M450 | Method: CCD | Duration: 13.18,46.10,0 Yellow O?: Rene Bourtembourg Optics: M254 | Method: VIS | Duration: 0.80 5.11,50.29,0