Occultation of TYC 2447-00077-1 by (591) Irmgard on 2001-10-09 Red O-: F.R. Van Loo Optics: M250 | Method: VIS | Duration: 5.50,51.00,0 Red O-: Leszek Benedyktowicz Optics: M330 | Method: CCD | Duration: 19.82,50.05,0 Red O-: Carles Schnabel Optics: M210 | Method: VIS | Duration: 1.87,41.49,0 Red O-: Oernulf Midtskogen Optics: L80 | Method: VIS | Duration: -3.87,36.75,0