The Result of η-Aquariids


This page provides result of η-Aquariids by worldwide radio meteor observations.

Annual Variations

icon Annual Variation List

icon Annual Variation Graphs

Information (as following list)

YearsourceComments (Time:UT)
2020WorldWideEstimated peak was at λo45°.5 with A(max)=1.1.
2019WorldWideThe weaker activity with peak time at λo44°.6
2018WorldWideThe higher activity was observed as same as 2017.
2017WorldWideThe higher activity was observed. A predicted sub-peak was observed.
2016WorldWideThe weak activity level was shown such as 2014. λo49°.5 was clear.
2015WorldWideThe peak time as λ43°.1 was much earlier than annual year.
2014WorldWideThe half activity of annual level was shown between λo45° and 49°
2013WorldWideThe activity level was much higher as more than A(t)=3.
2012WorldWideThe activity level was higher than annual year.
2011WorldWideAs 2010 and 2009, the main peak was later. And FWHM was wider.
2010WorldWideAs 2009, the main peak was later. And sub-peak was later.
2009WorldWideThe peak time was later more than 1day. Sub-peak was observed before.
2008WorldWideThe peak time was 45°.5 as annual year. Later-peak was observed.
2007WorldWideThe peak time was 45°.9. Activity level was between 2005 and 2006.
2006WorldWideThe Activity level was weaker than 2004 and 2005.
2005WorldWideThe peak time was 46°. It has FWHM as 60 hours before and after.
2004WorldWideThe peak time came earlier than visual peak time.
2001Misato Obs.The peak was unclear (5th? or 7th?)
2000Misato Obs.The peak was 5th – 6th.


Introduction and observing conditions are provided this content.
icon Introduction of η-Aquariids