Occultation of TYC 1911-00434-1 by (77) Frigga on 2025-04-21 Green O+: Jorge JUAN, Carles Schnabel Optics: M410 | Method: VID | Duration: 2.52 1.77,41.54,0 Green O+: Joan Aragones Optics: M250 | Method: CCD | Duration: 2.61 2.16,41.41,0 Green O+: Jordi Marco Optics: M235 | Method: CCD | Duration: 2.55 2.16,41.40,0