October Draconids Meteor Shower (Peak Time and Condition)

9 March 2021

October Draconids sometime shows strong activity. Recent outburst occured in 2018, 2012 and 2011. This meteor shower has the charactristic which is very slow geocentric velocity as 20km/s. Radio Meteor Observations is also possible to catch its activity when outburst occured. On the other hand, however, it is difficult to find a clear activity under not-outburst.

Contents

1. Information of October Draconids
- 1.1. Reference and Useful Links
2. Conditions in the future (2021-2025) for Radio Meteor Observations
- 2.1. Conditions in North America
- 2.2. Conditions in Other region
3. Results of October Draconids by Radio Meteor Observations

Information of October Draconids

Name (code)		October Draconids (009 DRA)
Active	Visual(IMO)	Oct.6^th – Oct.10^th
Active	Radio(IPRMO)	Oct.8^th – Oct.9^th
Maximum	Visual(IMO)	λ_⊙=195°.4
Maximum	Radio(IPRMO)	-(not clear)
Radiant		α = 262° / δ = +54°
feature		ZHR(max):var., r=2.6, V_∞:20km/s Radio) no detail information
Parant Comet		21P/Giacobini-Zinner

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.
Conditions for Visual Observers (by AMS)

Conditions in North America

Time : Daylite-Saving Time

Year	Peak Time and Condition (λ_⊙=195°.4)					Comments for Radio Obs.
Year	AST(ADT)	EST(EDT)	CST(CDT)	MST(MDT)	PST(PDT)	Comments for Radio Obs.
Year	Peak Time and Condition (λ_⊙=195°.4)
2021	Oct 8^th 15^h	Oct 8^th 14^h	Oct 8^th 13^h	Oct 8^th 12^h	Oct 8^th 11^h	under best condition
2022	Oct 8^th 22^h	Oct 8^th 21^h	Oct 8^th 20^h	Oct 8^th 19^h	Oct 8^th 18^h	under best condition
2023	Oct 9^th 04^h	Oct 9^th 03^h	Oct 9^th 02^h	Oct 9^th 01^h	Oct 9^th 00^h	low radiant elevation
2024	Oct 8^th 10^h	Oct 8^th 09^h	Oct 8^th 08^h	Oct 8^th 07^h	Oct 8^th 06^h	low radiant elevation
2025	Oct 8^th 16^h	Oct 8^th 15^h	Oct 8^th 14^h	Oct 8^th 13^h	Oct 8^th 12^h	under 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)

Year	Peak Time and Condition (λ_⊙=195°.4)				Comments for Radio Obs.
Year	GMT(UK)	CET(Italy)	IST(India)	JST(Japan)	Comments for Radio Obs.
Year	Peak and Condition (λ_⊙=195°.4)
2021	Oct 8^th 18^h	Oct 8^th 19^h	Oct 8^th 23^h	Oct 9^th 03^h	Europe is better condtion
2022	Oct 9^th 01^h	Oct 9^th 02^h	Oct 9^th 06^h	Oct 9^th 10^h	West Europe is better
2023	Oct 9^th 07^h	Oct 9^th 08^h	Oct 9^th 12^h	Oct 9^th 16^h	East Asia is better
2024	Oct 8^th 13^h	Oct 8^th 14^h	Oct 8^th 18^h	Oct 8^th 22^h	West Asia is better
2025	Oct 8^th 19^h	Oct 8^th 20^h	Oct 9^th 00^h	Oct 9^th 04^h	Europe under best condition

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

Results of October Draconids by Radio Meteor Observations

Result of October Draconids is recorded by worldwide radio meteor observers.
Result of October Draconids

Posted by Hiroshi Ogawa