2021 Ursids Radio results

*ZHR_r (Solar Longitude)

 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 13 days.

* Worldwide( 1 hour)

*ZHR_r (Time display)

* only Japan( 1 hour)

*Thanks

     The source data uses Radio Meteor Observatory's On Line

*Inquiry and opinion

     I'm waiting for your opinion. E-mail ; Hirofumi Sugimoto