Positions of geocentric radiants of theoretical particles grouped into five filaments of the meteoroid stream associated with comet C/1964 N1. The radiants of particles in the F1 (F2, F3, F4, and F5) filament are plotted with red pluses (green crosses, blue asterisks, violet full squares, and cyan full circles). The positions are shown for four models of the C/1964 N1 stream characterized with (tev, β) equal to (20, 0.0001) (panel a), (40, 0.003) (panel b), (80, 0.00001) (panel c), and (80, 0.007) (panel d). To show the positions of the radiants, the Sun-centered ecliptical coordinate frame is used.
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