2009 Orionids - Radio results

*ZHR(Time axis)

　　CHR is obtained by subtracting the sporadic meteor from Count.
　　It is equal to CHR of the visual observation.
　　ZHR is obtained by correcting the elevation from CHR.
　　ZHR excludes the radiation point of 20 degrees or less.
　　The sporadic meteor is calculated from past data of 500 days.

The count is 8 radio observers' weighted averages.


The count is 3 radio observers' weighted averages.


The count is 2 radio observers' weighted averages.


The count is 3 radio observers' weighted averages.

*ZHR(Solar longitude)

*Address of thanks

　I used the data of each country. Thank you.

• Chris Steyaert, De_Wilde, Willy Camps
• Andy Smith_G7IZU, Dave Swan
• Glen Harris, Jeff Brower, Prince_George_Centre