Past List of Orionids

This page provides the list of Orionid annual variation using Radio Meteor Observation. Annnual variation graphs is also provided. Each year text connects to detail information of the year.

Observed Peak Times of Orionids

Date Time(UT) Solar Longitude A(max)
2020 22nd Oct. 22h(UT) 209°.699 0.50±0.27
2019 24th Oct. 15h(UT) 210°.654 1.08±0.37
2018 23rd Oct. 21h(UT) 210°.168 0.66±0.26
2017 18th Oct. 18h(UT) 205°.286 0.78±0.12
2016 22nd Oct. 13h(UT) 209°.347 0.63±0.60
2015 20th Oct. 14h(UT}
22nd Oct. 15h(UT)
206°.665
208°.695
1.43±0.51
0.61±0.30
2014 22nd Oct. 06h(UT) 208°.576 0.58±0.05
2013 21st Oct. 20h(UT}
22nd Oct. 15h(UT)
208°.415
209°.202
0.73±0.22
0.80±0.27
2012 22nd Oct. 02h(UT) 208°.922 1.20±0.33
2011 23rd Oct. 01h(UT) 209°.131 0.97±0.10
2010 20th Oct. 17h(UT) 207°.070 1.15±0.52
2009 21st Oct. 19h(UT) 208°.401 1.27±0.20
2008 21st Oct. 20h(UT) 208°.692 1.41±0.18
2007 21st Oct. 21h(UT) 207°.998 1.68±0.76
2006/td> 20th Oct. 22h(UT) 207°.300 1.86±0.60
2005 22nd Oct. 02h(UT) 208°.715 1.42±0.18
2004 22nd Oct. 01h(UT) 208°.933 0.84±0.02

Estimated Acticvity Compornents of Orionids

Date Comp.Code Peak Time(UT) Solar Longitude A(max) FWHM
2020 ORI20C01 22nd Oct. 23:30 209°.741 0.2(*) -96.0< / +96.0<(**)
2019 ORI19C01 23rd Oct. 14:30 209°.617 0.3(*) -96.0< / +84.0(**)
2018 ORI18C01 23rd Oct. 11:30 209°.753 0.2(*) -96.0< / +96.0<(**)
2017 ORI17C01 21st Oct. 00:30 208°.228 0.3(*) -90.0 / +96.0<(**)
2016 ORI16C01 22nd Oct. 00:30 208°.808 0.3(*) -96.0< / +96.0<(**)
2015 ORI15C01
ORI15C02
20th Oct. 14:30
22nd Oct. 20:30
206°.665
208°.903
1.3
0.3(*)
-3.0 / +2.0
-96.0< / +96.0<(**)
2014 ORI14C01 22nd Oct. 16:30 208°.990 0.3(*) -78.0 / +96.0<(**)
2013 ORI13C01 23rd Oct. 01:30 209°.617 0.3(*) -96.0< / +96.0<(**)
2012 ORI12C01 20th Oct. 13:30 207°.388 0.4(*) -54.0 / +96.0<(**)
2011 ORI11C01 22nd Oct. 21:30 208°.965 0.4(*) -96.0< / +96.0<(**)
2010 ORI10C01 21st Oct. 12:30 207°.857 0.6 -48.0 / +66.0
2009 ORI09C01 22nd Oct. 02:30 208°.689 0.7 -48.0 / +72.0
2008 ORI08C01 21st Oct. 15:30 208°.484 0.8 -24.0 / +54.0
2007 ORI07C01 21st Oct. 21:00 207°.998 1.0 -24.0 / +42.0
2006 ORI06C01 21st Oct. 16:30 208°.046 1.0 -30.0 / +54.0
2005 ORI05C01 22nd Oct. 12:00 209°.130 0.7 -42.0 / +48.0
2004 ORI04C01 21st Oct. 21:30 208°.767 0.4(*) -66.0 / +48.0

Note:
(*) these values mean unusual activity level that are 0.0±0.4.
(**)The FWHM has the parameter between ±0 and ±96 hours. If it has more than ±96 hours FWHM, therefore, this list showes “96.0 < “.

Posted by h-ogawa