The Latest Information of Perseids 2025

2025-08-16

This page provided the latest information of Perseids 2025 using worldwide radio meteor observations. This information was published by Hiroshi OGAWA and Hirofumi SUGIMOTO (Japan).

[Attention] Please reflesh this page using Ctrl+F5 key when you see the latest information.

Estimated ZHRr

The following graph is provided by Mr.Hirofumi SUGIMOTO in Japan.

Perseids2025-estimated ZHRr

  • 50 observed data.
  • radiant information : Perseids
  • 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.
  • Sugimoto H. (2017). “The New Method of Estimating ZHR using Radio Meteor Observations”. eMetN, 2,109–110.

Activity Level Index

The following graph is provided by IPRMO (this project, Hiroshi Ogawa). A gray line means a past average.

Perseids 2025 Activity Level Index

  • 54 observed data in 22 countries.
  • Ogawa H., Toyomasu S., Ohnishi K., and Maegawa K. (2001). “The Global Monitor of Meteor Streams by Radio Meteor Observation all over the world”. In, Warmbein Barbara, editor, Proceeding of the Meteoroids 2001 Conference, 6-10 August 2001, Swedish Institute of Space Physics, Kiruna, Sweden. ESA Publications Division, European Space Agency, Noordwijk, The Netherlands, pages 189–191.

Thank you for worldwide radio meteor observers !

This latest information was provided by worldwide radio meteor data published on Radio Meteor Observation Bulletin (RMOB)

flash2025,Perseids,results

Posted by h-ogawa