Occultation of TYC 5239-00910-1 by (591) Irmgard on 2017-09-03 Green O+: E. Frappa/A. Klotz Optics: M250 | Method: CCD | Duration: 3.34 6.92,43.75,0 Green O+: Matthieu Conjat Optics: M200 | Method: CCD | Duration: 2.76 7.30,43.73,0 Green O+: Florian Signoret Optics: M400 | Method: VID | Duration: 1.92 7.07,43.60,0 Red O-: G. Vaudescal/R. Yken Optics: M305 | Method: VID | Duration: 0.06,43.14,0