RADIO ASTRONOMY
Radio meteor counts for August 2021 are shown , right, where there is a clear peak on 13th August due to the Perseid meteor shower peaking, however there was another peak on the 14th August around 1000 UT. This was not expected and some fortunate visual observers in America reported a ZHR of about 200 at this time. Clearly it is much better to see meteors of any kind but radio observing is useful as monitoring is carried out 24 hours a day and detects meteors which would not be visually observed even at night time
August radio meteor counts by Phil Rourke
Below is the hourly count for August 13th where the peak occurs between 0300 and 0400 UT.
Below is the hourly count for August 14th where the peak occurs between 1000 and 1100 UT. This secondary peak was detected throughout the world by radio observers. More detailed analysis is being carried out by academics. For example radio observers have been asked to submit ten minute counts to help with detailed examination of the secondary peak.
