IAU 186 · EUM
epsilon 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
- 0
- MDC status
- single shower, working list
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 106 °
- Radiant right ascension
- 192.5 °
- Radiant declination
- 61.7 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 15.2 km/s
- Semimajor axis
- 2.994 AU
- Perihelion distance
- 0.98 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 156.3 °
- Ascending node
- 105.8 °
- Inclination
- 20 °
- Observed members
- Not reported
- Technique
- P
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 1) Terentjeva, 1989
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 1
- MDC status code
- 0
- MDC status
- single shower, working list
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 89 °
- Radiant right ascension
- 233.3 °
- Radiant declination
- 53.9 °
- Right ascension drift
- 0.48 °/day
- Declination drift
- -0.24 °/day
- Geocentric speed
- 15.2 km/s
- Semimajor axis
- 2.63 AU
- Perihelion distance
- 1.015 AU
- Eccentricity
- 0.617
- Argument of perihelion
- 185.5 °
- Ascending node
- 89.4 °
- Inclination
- 22.1 °
- Observed members
- 45
- 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)