IAU 167 · NSS
Northern sigma Sagittariids
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
- 1968/69
- Shower group
- 00296
- Peak solar longitude
- 92.3 °
- Radiant right ascension
- 293.1 °
- Radiant declination
- -14 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 23.2 km/s
- Semimajor axis
- 1.133 AU
- Perihelion distance
- 0.332 AU
- Eccentricity
- 0.707
- Argument of perihelion
- 309.4 °
- Ascending node
- 92.3 °
- Inclination
- 8.2 °
- Observed members
- 45
- Technique
- R
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 1) Sekanina, 1976 (Tab.VI p. 297 Sigma Carpricornids)
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
- 1961
- Shower group
- 00296
- Peak solar longitude
- 86.6 °
- Radiant right ascension
- 278.4 °
- Radiant declination
- -20 °
- Right ascension drift
- 1.3 °/day
- Declination drift
- Not reported
- Geocentric speed
- 26.5 km/s
- Semimajor axis
- 1.72 AU
- Perihelion distance
- Not reported
- Eccentricity
- 0.78
- Argument of perihelion
- 296.6 °
- Ascending node
- 86.6 °
- Inclination
- 4.5 °
- Observed members
- 4
- Technique
- R
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 2) Nilson, 1964 (Tab. 6, Gr. 61.6.6)
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)