IAU 479 · SOO
September omicron Orionids
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
- 0
- MDC status
- single shower, working list
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 185.6 °
- Radiant right ascension
- 79.2 °
- Radiant declination
- 12.1 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 67.6 km/s
- Semimajor axis
- Not reported
- Perihelion distance
- 0.774 AU
- Eccentricity
- 0.928
- Argument of perihelion
- 58.1 °
- Ascending node
- 5.6 °
- Inclination
- 159.3 °
- Observed members
- 18
- Technique
- T
- Submitted on
- SD
- Reported parent body
- P/2005 T4 (SWAN)
Reference: 1) Rudawska and Jenniskens, 2014
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
- 185.7 °
- Radiant right ascension
- 80.4 °
- Radiant declination
- 10.61 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 66.87 km/s
- Semimajor axis
- Not reported
- Perihelion distance
- 0.792 AU
- Eccentricity
- 0.876
- Argument of perihelion
- 56.5 °
- Ascending node
- 5.7 °
- Inclination
- 156.5 °
- Observed members
- 20
- Technique
- T
- Submitted on
- SD
- Reported parent body
- P/2005 T4 (SWAN)
Reference: 2) Kornos et al., 2014
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 2
- MDC status code
- 0
- MDC status
- single shower, working list
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 187 °
- Radiant right ascension
- 80.9 °
- Radiant declination
- 12.5 °
- Right ascension drift
- 1.01 °/day
- Declination drift
- 0.06 °/day
- Geocentric speed
- 67.6 km/s
- Semimajor axis
- 8.11 AU
- Perihelion distance
- 0.777 AU
- Eccentricity
- 0.911
- Argument of perihelion
- 57.6 °
- Ascending node
- 7.7 °
- Inclination
- 159.9 °
- Observed members
- 40
- Technique
- T
- Submitted on
- SD
- Reported parent body
- P/2005 T4 (SWAN)
Reference: 3) Jenniskens et al., 2016, Icarus, 266, 331
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)