IAU 33 · NIA
Northern iota Aquariids
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.
6 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
- 00298
- Peak solar longitude
- 147.7 °
- Radiant right ascension
- 328.4 °
- Radiant declination
- -5.6 °
- Right ascension drift
- 1.03 °/day
- Declination drift
- 0.13 °/day
- Geocentric speed
- 31.2 km/s
- Semimajor axis
- 1.625 AU
- Perihelion distance
- 0.26 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 308 °
- Ascending node
- 147.7 °
- Inclination
- 5 °
- Observed members
- 3
- Technique
- Not reported
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 1) Cook, 1973
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
- 00298
- Peak solar longitude
- 145.1 °
- Radiant right ascension
- 328 °
- Radiant declination
- -4.7 °
- Right ascension drift
- 0.9 °/day
- Declination drift
- 0.18 °/day
- Geocentric speed
- 27.6 km/s
- Semimajor axis
- 2.419 AU
- Perihelion distance
- 0.358 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 297.4 °
- Ascending node
- 145.1 °
- Inclination
- 7.4 °
- Observed members
- Not reported
- Technique
- Not reported
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 2) Dutch Meteor Society 2001
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
- 00298
- Peak solar longitude
- 159.5 °
- Radiant right ascension
- 356 °
- Radiant declination
- 3 °
- Right ascension drift
- 0.8 °/day
- Declination drift
- 0.33 °/day
- Geocentric speed
- 28.6 km/s
- Semimajor axis
- 1.52 AU
- Perihelion distance
- 0.266 AU
- Eccentricity
- 0.825
- Argument of perihelion
- 309 °
- Ascending node
- 158.8 °
- Inclination
- 5.7 °
- Observed members
- 509
- 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
- 00298
- Peak solar longitude
- 159 °
- Radiant right ascension
- 355.4 °
- Radiant declination
- 3.4 °
- Right ascension drift
- 0.84 °/day
- Declination drift
- 0.39 °/day
- Geocentric speed
- 28.7 km/s
- Semimajor axis
- 1.57 AU
- Perihelion distance
- 0.2705 AU
- Eccentricity
- 0.827
- Argument of perihelion
- 308.07 °
- Ascending node
- 159 °
- Inclination
- 6.9 °
- Observed members
- 1,891
- 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
- 2012
- Shower group
- 00298
- Peak solar longitude
- 142 °
- Radiant right ascension
- 334 °
- Radiant declination
- -8.3 °
- Right ascension drift
- 0.4 °/day
- Declination drift
- -0.5 °/day
- Geocentric speed
- 29.4 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
- 850
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 5) Molau et al., 2012
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 5
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- annual
- Shower group
- 00298
- Peak solar longitude
- 148 °
- Radiant right ascension
- 346.7 °
- Radiant declination
- -1.2 °
- Right ascension drift
- 0.92 °/day
- Declination drift
- 0.39 °/day
- Geocentric speed
- 31.3 km/s
- Semimajor axis
- 1.76 AU
- Perihelion distance
- 0.234 AU
- Eccentricity
- 0.874
- Argument of perihelion
- 310.5 °
- Ascending node
- 147.8 °
- Inclination
- 5.9 °
- Observed members
- 94
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 6) Jenniskens et al., 2016, Icarus, 266, 331
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)