IAU 13 · LEO
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.
9 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
- 2001
- Shower group
- 00000
- Peak solar longitude
- 235.1 °
- Radiant right ascension
- 154.24 °
- Radiant declination
- 21.6 °
- Right ascension drift
- 0.659 °/day
- Declination drift
- -0.325 °/day
- Geocentric speed
- 70.66 km/s
- Semimajor axis
- 10.1 AU
- Perihelion distance
- 0.9853 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 173.5 °
- Ascending node
- 236.15 °
- Inclination
- 162.36 °
- Observed members
- Not reported
- Technique
- Not reported
- Submitted on
- SD
- Reported parent body
- 55P/Temple-Tuttle
Reference: 1) H.Betlem ??
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
- 235.2 °
- Radiant right ascension
- 153 °
- Radiant declination
- 22 °
- Right ascension drift
- 0.7 °/day
- Declination drift
- -0.42 °/day
- Geocentric speed
- 70.7 km/s
- Semimajor axis
- 11.5 AU
- Perihelion distance
- 0.985 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 172.5 °
- Ascending node
- 235.2 °
- Inclination
- 162.6 °
- Observed members
- Not reported
- Technique
- Not reported
- Submitted on
- SD
- Reported parent body
- 55P/Temple-Tuttle
Reference: 2) Cook, 1973
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
- annual
- Shower group
- 00000
- Peak solar longitude
- 235 °
- Radiant right ascension
- 153.6 °
- Radiant declination
- 22.1 °
- Right ascension drift
- 0.6 °/day
- Declination drift
- -0.45 °/day
- Geocentric speed
- 70.26 km/s
- Semimajor axis
- 10.3 AU
- Perihelion distance
- 0.984 AU
- Eccentricity
- 0.904
- Argument of perihelion
- 172.4 °
- Ascending node
- 235 °
- Inclination
- 162.1 °
- Observed members
- 9
- Technique
- P
- Submitted on
- SD
- Reported parent body
- 55P/Temple-Tuttle
Reference: 3) Kresak and Porubcan, 1970
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
- annual
- Shower group
- 00000
- Peak solar longitude
- 235.7 °
- Radiant right ascension
- 153.9 °
- Radiant declination
- 21.6 °
- Right ascension drift
- 0.944 °/day
- Declination drift
- -0.603 °/day
- Geocentric speed
- 70.92 km/s
- Semimajor axis
- 15.2 AU
- Perihelion distance
- 0.984 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 172.36 °
- Ascending node
- 235.7 °
- Inclination
- 162.53 °
- Observed members
- 29
- Technique
- Not reported
- Submitted on
- SD
- Reported parent body
- 55P/Temple-Tuttle
Reference: 4) Lindblad et al., 1993
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
- 235.4 °
- Radiant right ascension
- 153.6 °
- Radiant declination
- 21.8 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 70.8 km/s
- Semimajor axis
- Not reported
- Perihelion distance
- 0.985 AU
- Eccentricity
- 0.918
- Argument of perihelion
- 173.2 °
- Ascending node
- 235.4 °
- Inclination
- 162.4 °
- Observed members
- 6
- Technique
- P
- Submitted on
- SD
- Reported parent body
- 55P/Temple-Tuttle
Reference: 5) Jopek et al., 2003
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 5
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- 2002/06
- Shower group
- 00000
- Peak solar longitude
- 236.5 °
- Radiant right ascension
- 155 °
- Radiant declination
- 21.6 °
- Right ascension drift
- 0.63 °/day
- Declination drift
- -0.27 °/day
- Geocentric speed
- 69 km/s
- Semimajor axis
- 4.22 AU
- Perihelion distance
- 0.982 AU
- Eccentricity
- 0.7674
- Argument of perihelion
- 170.3 °
- Ascending node
- 236.2 °
- Inclination
- 161.5 °
- Observed members
- 126
- Technique
- R
- Submitted on
- SD
- Reported parent body
- 55P/Temple-Tuttle
Reference: 6) Brown et al., 2008
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 6
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- 2007/08
- Shower group
- 00000
- Peak solar longitude
- 235.4 °
- Radiant right ascension
- 153.9 °
- Radiant declination
- 21.88 °
- Right ascension drift
- 0.56 °/day
- Declination drift
- -0.39 °/day
- Geocentric speed
- 70 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
- 713
- Technique
- T
- Submitted on
- SD
- Reported parent body
- 55P/Temple-Tuttle
Reference: 7) SonotaCo, 2009
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 7
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- 2002/08
- Shower group
- 00000
- Peak solar longitude
- 237 °
- Radiant right ascension
- 155.1 °
- Radiant declination
- 21.1 °
- Right ascension drift
- 0.55 °/day
- Declination drift
- -0.37 °/day
- Geocentric speed
- 67.3 km/s
- Semimajor axis
- 2.52 AU
- Perihelion distance
- 0.9838 AU
- Eccentricity
- 0.61
- Argument of perihelion
- 171.11 °
- Ascending node
- 237 °
- Inclination
- 162 °
- Observed members
- 2,268
- Technique
- R
- Submitted on
- SD
- Reported parent body
- 55P/Temple-Tuttle
Reference: 8) Brown et al., 2010
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 8
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 235 °
- Radiant right ascension
- 153.8 °
- Radiant declination
- 21.8 °
- Right ascension drift
- 0.99 °/day
- Declination drift
- -0.36 °/day
- Geocentric speed
- 70.2 km/s
- Semimajor axis
- 6.63 AU
- Perihelion distance
- 0.983 AU
- Eccentricity
- 0.867
- Argument of perihelion
- 170.8 °
- Ascending node
- 234.5 °
- Inclination
- 162.2 °
- Observed members
- 268
- Technique
- T
- Submitted on
- SD
- Reported parent body
- 55P/Tempel-Tuttle
Reference: 9) Jenniskens et al., 2016, Icarus, 266, 331
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)