The Latest Information of Aurigids 2021

2021-08-31

Last Updated :02/Sep/2021 21:30UT

This page provides the latest activity information of Aurigids 2021 by using worldwide Radio Meteor Observations from RMOB. This information was published by Hiroshi OGAWA and Hirofumi SUGIMOTO (Japan).

Summary: Aurigids 2021 showed a small outburst on August 31. The outburst peak occured at λ_⊙=158°.39 (August 31. 21^h(UT)) with around ZHR_r=55. Using data every 10minutes, the centeral peak was estimated at λ_⊙=158°.395 with around ZHR_r=80. But their ZHR_r values have a wide error range. Activity Level Index(AL) also recorded AL=1.1±0.4 at the same time of ZHR_r. Besides, the number of Long Echoe which continues for more than 20 seconds increased. (updated on Sep 2^nd. 21^h UT)

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Contents

1. Estimated ZHR_r
2. Activity Level Index
3. A lot of Long Echoes were observed
4. Thank you for worldwide radio meteor observers !

Estimated ZHR_r

by Hirofumi SUGIMOTO
Hourly Data

10minutes

40 observed data.
Sugimoto H. (2017). “The New Method of Estimating ZHR using Radio Meteor Observations”. eMetN, 2,109–110.

Activity Level Index

by Hiroshi Ogawa

39 observed data in 13 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.

A lot of Long Echoes were observed

In this time, the number of long echoes increased for the period of Aug.31 21:20-22:00(UT). The following images were provided Mr.Masaki Kano in Japan (Time:UT).