Orionids Meteor Shower (Peak Time and Condition)


Since Orionids is the second firstest meteor shower, a lot of bright meteors and trains are observed. The parant comet is 1P/Halley. In 2006 and 2007, outburst activities were observed in the world.
Radio Meteor Observation is possible to catch its activities when ourburst occured. On the other hand, however, it is impossibe to find a clear activity under no-outburst. One of this reasons is a high speed geocentric velocity.

Information of Orionids

Name (code)Orionids (008 ORI)
ActiveVisual(IMO)Oct.2nd – Nov.7th
Radio(IPRMO)Oct.20th – Oct.24th
Radiantα = 95° / δ = +16°
featureZHR(max):30, r=2.4, V:66km/s
Radio) Maximum Activity Level=0.3 FWHM:-2°.5/+2°.0
Parant Comet1P/Halley

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

YearPeak Time and Condition (λ=208°.0)Comments for Radio Obs.
YearPeak Time and Condition
2021Oct 8th 15hbestOct 8th 14hbestOct 8th 13hbestOct 8th 12hbestOct 8th 11hgoodunder best condition
2022Oct 8th 22hbestOct 8th 21hbestOct 8th 20hbestOct 8th 19hbestOct 8th 18hbestunder best condition
2023Oct 9th 04hbadOct 9th 03hnormalOct 9th 02hnormalOct 9th 01hnormalOct 9th 00hgoodlow radiant elevation
2024Oct 8th 10hnormalOct 8th 09hnormalOct 8th 08hnormalOct 8th 07hnormalOct 8th 06hbadlow radiant elevation
2025Oct 8th 16hbestOct 8th 15hbestOct 8th 14hbestOct 8th 13hbestOct 8th 12hbestunder best condition

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)

YearPeak Time and Condition (λ=208°.0)Comments for Radio Obs.
YearPeak and Condition
2021Oct 8th 18hnormalOct 8th 19hnormalOct 8th 23hnormalOct 9th 03hbadEurope is better condtion
2022Oct 9th 01hNormalOct 9th 02hGoodOct 9th 06hBadOct 9th 10hBadWest Europe is better
2023Oct 9th 07hNormalOct 9th 08hNormalOct 9th 12hGoodOct 9th 16hBestEast Asia is better
2024Oct 8th 13hBestOct 8th 14hBestOct 8th 18hBestOct 8th 22hGoodWest Asia is better
2025Oct 8th 19hBestOct 8th 20hBestOct 9th 00hGoodOct 9th 04hbadEurope under best condition

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

Results of Orionids by Radio Meteor Observations

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