Occultation of G013724.6+140906 by (1647) Menelaus on 2021-10-21 Green O+: Daniel Blazewicz Optics: M350 | Method: CCD | Duration: 0.58 20.32,49.99,0 Green O+: Ferran Casarramona Optics: M200 | Method: VID | Duration: 2.72 -2.02,36.88,0