Occultation of PPM 156720 by (50) Virginia on 1997-01-22 Green O+1: Leszek Benedyktowicz Optics: M350 | Method: VID | Duration: 0.15 19.83,50.05,0 Green O+2: Leszek Benedyktowicz Optics: M350 | Method: VID | Duration: 1.50 19.83,50.05,0 Red O-: Eltjo Wubbena Optics: M200 | Method: VIS | Duration: 4.88,51.65,0 Red O-: Patrick Degrelle Optics: M153 | Method: VIS | Duration: 3.13,50.78,0 Red O-: R. Goncalves et al Optics: M254 | Method: CCD | Duration: -9.33,38.70,0