IAU 319 · JLE
January Leonids
Measurements from the IAU Meteor Data Center. Each parameter set describes an observation campaign; values and proposed parent bodies may differ between sets.
An activity peak is expressed as solar longitude, not a guaranteed calendar date or observing forecast. Radiant coordinates and orbital elements are reported as supplied by the source. Missing values are not reported; these data do not predict an hourly meteor rate.
5 parameter sets returned for this shower. List-page filters do not hide sets here.
Parameter set 0
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- 2002/06
- Shower group
- 00000
- Peak solar longitude
- 282.5 °
- Radiant right ascension
- 148.3 °
- Radiant declination
- 23.9 °
- Right ascension drift
- 0.66 °/day
- Declination drift
- -0.14 °/day
- Geocentric speed
- 52.7 km/s
- Semimajor axis
- 6.3 AU
- Perihelion distance
- 0.055 AU
- Eccentricity
- 0.9913
- Argument of perihelion
- 333.7 °
- Ascending node
- 282 °
- Inclination
- 109.3 °
- Observed members
- 138
- Technique
- R
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 1) Brown et al., 2008
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 1
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 281 °
- Radiant right ascension
- 146.6 °
- Radiant declination
- 24.4 °
- Right ascension drift
- 0.6 °/day
- Declination drift
- -0.15 °/day
- Geocentric speed
- 59.2 km/s
- Semimajor axis
- Not reported
- Perihelion distance
- Not reported
- Eccentricity
- Not reported
- Argument of perihelion
- Not reported
- Ascending node
- Not reported
- Inclination
- Not reported
- Observed members
- 119
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 2) Molau and Rendtel, 2009
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 2
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- 2002/08
- Shower group
- 00000
- Peak solar longitude
- 282 °
- Radiant right ascension
- 148.2 °
- Radiant declination
- 23.7 °
- Right ascension drift
- 0.7 °/day
- Declination drift
- -0.13 °/day
- Geocentric speed
- 52.3 km/s
- Semimajor axis
- 5.34 AU
- Perihelion distance
- 0.0517 AU
- Eccentricity
- 0.99
- Argument of perihelion
- 334.71 °
- Ascending node
- 282 °
- Inclination
- 107.9 °
- Observed members
- 1,160
- Technique
- R
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 3) Brown et al., 2010
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 3
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- 2013
- Shower group
- 00000
- Peak solar longitude
- 281 °
- Radiant right ascension
- 146.6 °
- Radiant declination
- 24.3 °
- Right ascension drift
- 0.6 °/day
- Declination drift
- -0.2 °/day
- Geocentric speed
- 60.4 km/s
- Semimajor axis
- Not reported
- Perihelion distance
- Not reported
- Eccentricity
- Not reported
- Argument of perihelion
- Not reported
- Ascending node
- Not reported
- Inclination
- Not reported
- Observed members
- 250
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 4) Molau et al., 2013
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 4
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 283 °
- Radiant right ascension
- 147.7 °
- Radiant declination
- 24.1 °
- Right ascension drift
- 1.01 °/day
- Declination drift
- -0.34 °/day
- Geocentric speed
- 51.4 km/s
- Semimajor axis
- 5.43 AU
- Perihelion distance
- 0.048 AU
- Eccentricity
- 0.991
- Argument of perihelion
- 335.7 °
- Ascending node
- 283.4 °
- Inclination
- 100.1 °
- Observed members
- 13
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 5) Jenniskens et al., 2016, Icarus, 266, 331
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)