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J14 All shower Meteor Radiants and shower peak (Er1, Rsigma 2.5)


J14 shower meteors and spo meteors variation on R threshold
J14 spo meteors without accuracy rejection (ErA)

Orbits set variation of Er and Ev

where
Er: Radiant direction error computed by Monte Carlo Method
ErA=Er0 : without selection
Ern : threshold n dregree

Ev: Geocentric Verocity error computed by Monte Carlo Methid
Ev5: 5% of Vg threshold

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Distributin of Shower radiants and sporadic radiants
on R(distance from shower center) threshold variation
R sigma 2.0 -- threshold = sd r x 2.0
R sigma 3.0
R sigma 4.0

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ErA : set of all observed meteors (353231 orbits)
Er1 : set of hi-accuracy observation meteors, Er < 1.0 degree Ev < 5% (128228 orbits)

sample plots on ls=252 to 271 sporadic meteors (R sigma = 4.0)

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Orbit set full plot on variation of observation error