IAU 552 · PSO
pi6 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.
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
- 166.3 °
- Radiant right ascension
- 76.3 °
- Radiant declination
- -1.3 °
- Right ascension drift
- 0.64 °/day
- Declination drift
- 0.09 °/day
- Geocentric speed
- 66.5 km/s
- Semimajor axis
- Not reported
- Perihelion distance
- 1.003 AU
- Eccentricity
- 0.944
- Argument of perihelion
- 5.1 °
- Ascending node
- 346.3 °
- Inclination
- 139 °
- Observed members
- 46
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 1) Segon et al., 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
- 159 °
- Radiant right ascension
- 70.5 °
- Radiant declination
- -2.3 °
- Right ascension drift
- 0.9 °/day
- Declination drift
- 0.13 °/day
- Geocentric speed
- 65.8 km/s
- Semimajor axis
- 7.53 AU
- Perihelion distance
- 1.004 AU
- Eccentricity
- 0.893
- Argument of perihelion
- 17.2 °
- Ascending node
- 342.4 °
- Inclination
- 138.3 °
- Observed members
- 99
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 2) Jenniskens et al., 2016, Icarus, 266, 331
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)