Fig. 6
Dependence of the number of selected meteors on the threshold Southworth-Hawkins (1963) D-discriminant, Dlim, for the shower corresponding to filament F1 separated from the F – IAU MDC photographic (plot a), C – IAU MDC CAMS video (b), S – SonotaCo video (c), E – EDMOND video (d), and R – radio-meteor (e) database. The “break point” in plot b) is indicated with an arrow. The arrow with the question mark in this plot indicates an alternative break point.
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