(meteorobs) trails ZHR for the Leonids 2009 and 2069

[Mikhail Maslov]

Hello,

I didn't expect that ejection velocity can play such an immense role.
I tried to calculate ZHRs for Leonids 2009 and 2069 cases.
For 7 rev. trail in 2009 I got ZHR=11 - only, but still something
detectable, and for 4 rev. trail in 2069 I got only ZHR~200 - much
lower than can be expected at the first glance on the graph. These
figires are still approximate, but rather accurate.

Best regards, Mikhail