Perseids Meteor Shower (Peak Time and Condition)

Perseids in August is one of the best meteor showers. In 1991 and 1992, outburst activity was obeserved by the return of paranet comet. It is easy to observe in visual because Perseids provides a lot of bright meteors.
In Radio Meteor Observation, Perseid activity is also possible to catch clearly every year. Since the geocentric velocity is very fast as 59km/s, it is no much meteor echoes comparing with visual observation. On the other hand, a lot of long echoes more than 20 seconds are caught. The maximum both visual and radio occuer around λ=139°.9-λ=140°.0.

Information of Perseids

Name (code) Perseids (007 PER)
Active Visual(IMO) Jul.17th – Aug.24th
Radio(IPRMO) Aug.11th – Aug.14th
Maximum Visual(IMO) λ=140°.0
Radio(IPRMO) λ=139°.95
Radiant α = 46° / δ = +58°
feature ZHR(max):100, r=2.6, V:59km/s
Radio) Maximum Activity Level=1.2 FWHM:-0°.65/+0°.70
Parant Comet 109P/Swift-Tuttle

Reference and Useful Links

2021 Meteor Shower Calendar (International Meteor Organization)
– A new Working List of meteor showers (Rainer Arlt et al), WGN 34:3(2006)
– Meteor Shower Workbook 2014 (J.Rendtel) ? International Meteor Organization (2014)
– Major and Daytime Meteor Showers using Radio Meteor Observation in the World covering the period 2001-2016(H.Ogawa and C.Steyaert), WGN 45:4(2017)
The American Meteor Society (AMS)

Conditions in the future (2021-2025) for Radio Meteor Observations

Below lists are observig conditions for radio meteor observers in 2021, 2022, 2023, 2024 and 2025. This is listed for radio observers (NOT for visual observers). You can see visual observing conditions as following AMS site.
icon Conditions for Visual Observers (by AMS)

Conditions in North America

Time : Daylite-Saving Time

Year Peak Time and Condition (λ=140°.0) Comments for Radio Obs.
Year Peak Time and Condition
2021 Aug 12th 16hnormal Aug 12th 15hgood Aug 12th 14hgood Aug 12th 13hbest Aug 12th 12hbest better condition at western
2022 Aug 12th 22hBest Aug 12th 21hGood Aug 12th 20hGood Aug 12th 19hNormal Aug 12th 18hNormal better condition at eastern
2023 Aug 13th 04hBest Aug 13th 03hBest Aug 13th 02hBest Aug 13th 01hBest Aug 13th 00hBest Best condition !
2024 Aug 12th 11hbest Aug 12th 10hbest Aug 12th 09hbest Aug 12th 08hbest Aug 12th 07hbest Best condition !
2025 Aug 12th 17hnormal Aug 12th 16hnormal Aug 12th 15hgood Aug 12th 14hgood Aug 12th 13hbest better condition at western

Major cities (example)
AST(Halifox, etc.), EST(NewYork,Ottawa, etc.), CST(Cicago, etc.), MST(Denver, etc.), PST(LosAngeles, etc.)

Conditions in Other region

Time : Standard Time (NOT daylight-saving time)

Year Peak Time and Condition (λ=140°.0) Comments for Radio Obs.
GMT(UK) CET(Italy) IST(India) JST(Japan)
Year Peak and Condition
2021 Aug 12th 19hnormal Aug 12th 20hnormal Aug 13th 00hgood Aug 13th 04hBest East Asia is better condtion
2022 Aug 13th 01hBest Aug 13th 02hBest Aug 13th 06hBest Aug 13th 10hBest Asia is best condition
2023 Aug 13th 07hBest Aug 13th 08hBest Aug 13th 12hGood Aug 13th 16hNormal West Europe is better
2024 Aug 12th 14hGood Aug 12th 15hNormal Aug 12th 19hNormal Aug 12th 23hGood low radiant elevation
2025 Aug 12th 20hBest Aug 12th 21hBest Aug 13th 01hBest Aug 13th 05hBest Asia is better condition

GMT:United Kingdom, CET:Itarly, IST:India, JST:Japan

Results of Perseids by Radio Meteor Observations

Result of Perseids is recorded by worldwide radio meteor observers.
icon Result of Perseids

Posted by Hiroshi Ogawa