IAU 110 · AAN
alpha Antliids
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.
5 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
- 313.1 °
- Radiant right ascension
- 140 °
- Radiant declination
- -10 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- Not reported
- 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
- Not reported
- Technique
- Not reported
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 1) IMO
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
- 313.1 °
- Radiant right ascension
- 162.1 °
- Radiant declination
- -13.3 °
- Right ascension drift
- 0.68 °/day
- Declination drift
- -0.16 °/day
- Geocentric speed
- 42.7 km/s
- Semimajor axis
- Not reported
- Perihelion distance
- 0.143 AU
- Eccentricity
- 0.92
- Argument of perihelion
- 141.9 °
- Ascending node
- 133.1 °
- Inclination
- 64.3 °
- Observed members
- 327
- Technique
- R
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 2) Galligan and Baggaley, 2002
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
- 2002/06
- Shower group
- 00000
- Peak solar longitude
- 315.5 °
- Radiant right ascension
- 162.7 °
- Radiant declination
- -12.6 °
- Right ascension drift
- 0.84 °/day
- Declination drift
- -0.36 °/day
- Geocentric speed
- 44.75 km/s
- Semimajor axis
- 2.47 AU
- Perihelion distance
- 0.138 AU
- Eccentricity
- 0.9443
- Argument of perihelion
- 140.5 °
- Ascending node
- 135.5 °
- Inclination
- 63.5 °
- Observed members
- 563
- Technique
- R
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 3) Brown et al., 2008
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 3
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- 2002/08
- Shower group
- 00000
- Peak solar longitude
- 312 °
- Radiant right ascension
- 160.7 °
- Radiant declination
- -12.3 °
- Right ascension drift
- 0.745 °/day
- Declination drift
- -0.36 °/day
- Geocentric speed
- 43.25 km/s
- Semimajor axis
- 1.94 AU
- Perihelion distance
- 0.1367 AU
- Eccentricity
- 0.929
- Argument of perihelion
- 141.99 °
- Ascending node
- 132 °
- Inclination
- 64.3 °
- Observed members
- 1,228
- Technique
- R
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 4) Brown et al., 2010
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 4
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 312 °
- Radiant right ascension
- 157.2 °
- Radiant declination
- -9.5 °
- Right ascension drift
- 0.89 °/day
- Declination drift
- -0.37 °/day
- Geocentric speed
- 45 km/s
- Semimajor axis
- 3.57 AU
- Perihelion distance
- 0.143 AU
- Eccentricity
- 0.965
- Argument of perihelion
- 138.3 °
- Ascending node
- 133.4 °
- Inclination
- 58.6 °
- Observed members
- 34
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 5) Jenniskens et al., 2016, Icarus, 266, 331
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)