IAU 524 · LUM
lambda Ursae Majorids
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.
2 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
- annual
- Shower group
- 00000
- Peak solar longitude
- 215 °
- Radiant right ascension
- 158.2 °
- Radiant declination
- 49.4 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 60.3 km/s
- Semimajor axis
- 13 AU
- Perihelion distance
- 0.917 AU
- Eccentricity
- 0.931
- Argument of perihelion
- 147 °
- Ascending node
- 215 °
- Inclination
- 115 °
- Observed members
- 29
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 1) Andreic et al., 2013
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
- 214 °
- Radiant right ascension
- 157.8 °
- Radiant declination
- 50.2 °
- Right ascension drift
- 1.09 °/day
- Declination drift
- -0.37 °/day
- Geocentric speed
- 60.9 km/s
- Semimajor axis
- 3.1 AU
- Perihelion distance
- 0.92 AU
- Eccentricity
- 1.008
- Argument of perihelion
- 148.5 °
- Ascending node
- 213.5 °
- Inclination
- 114.5 °
- Observed members
- 4
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 2) Jenniskens et al., 2016, Icarus, 266, 355
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)