IAU 333 · OCU
October 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.
3 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
- 202 °
- Radiant right ascension
- 144.8 °
- Radiant declination
- 64.5 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 54.1 km/s
- Semimajor axis
- 5.9 AU
- Perihelion distance
- 0.979 AU
- Eccentricity
- 0.875
- Argument of perihelion
- 163.7 °
- Ascending node
- 202.1 °
- Inclination
- 99.7 °
- Observed members
- 10
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 1) Uehara et al., 2006
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
- 2007/08
- Shower group
- 00000
- Peak solar longitude
- 204.7 °
- Radiant right ascension
- 147.6 °
- Radiant declination
- 64 °
- Right ascension drift
- 0.13 °/day
- Declination drift
- 0.09 °/day
- Geocentric speed
- 54.4 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
- 15
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 2) SonotaCo, 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
- annual
- Shower group
- 00000
- Peak solar longitude
- 202 °
- Radiant right ascension
- 145 °
- Radiant declination
- 64.8 °
- Right ascension drift
- 1.39 °/day
- Declination drift
- -0.33 °/day
- Geocentric speed
- 55.6 km/s
- Semimajor axis
- 12.63 AU
- Perihelion distance
- 0.982 AU
- Eccentricity
- 0.967
- Argument of perihelion
- 165.9 °
- Ascending node
- 202.2 °
- Inclination
- 100.6 °
- Observed members
- 9
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 3) Jenniskens et al., 2016, Icarus, 266, 331
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)