2012 Quadrantids Radio results
* The ZHR_r Profile
CHR_r means the number of meteors subtracted sporadics from total.
ZHR_r = CHR_r * 1/sin(h) (h:radiant elevation),(excluding h <
20deg.)
The sporadic meteor is calculated from past data of 14 days.
* Only Japan( 1 hour)
![](QUA-h-J.gif)
*ZHR_r(Solar Longitude)
* Worldwide( 1 hour)
![](QUA-h-W.gif)
*2011
![](QUA-h-z2011.gif)
*2003-2011
![](QUA-h-zP.gif)
* Thank you
The source data uses Radio Meteor Observatory's On Line
* Inquiry and opinion
I'm waiting for your opinion. E-mail ; Hirofumi Sugimoto