IAU 184 · GDR
July gamma Draconids
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.
4 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
- 125.3 °
- Radiant right ascension
- 280.1 °
- Radiant declination
- 51.1 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 27.4 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
- 22
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 1) SonotaCo, 2009
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
- 125 °
- Radiant right ascension
- 280.9 °
- Radiant declination
- 51.7 °
- Right ascension drift
- -0.2 °/day
- Declination drift
- 0.2 °/day
- Geocentric speed
- 27.3 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
- 428
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 2) Molau and Rendtel, 2009
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
- 2011
- Shower group
- 00000
- Peak solar longitude
- 125.3 °
- Radiant right ascension
- 279.62 °
- Radiant declination
- 50.41 °
- Right ascension drift
- -0.24 °/day
- Declination drift
- 0.07 °/day
- Geocentric speed
- 27.54 km/s
- Semimajor axis
- Not reported
- Perihelion distance
- 0.978 AU
- Eccentricity
- 0.972
- Argument of perihelion
- 202.41 °
- Ascending node
- 124.66 °
- Inclination
- 40.24 °
- Observed members
- 25
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 3) Holman and Jenniskens 2012
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
- annual
- Shower group
- 00000
- Peak solar longitude
- 124 °
- Radiant right ascension
- 280.1 °
- Radiant declination
- 50.3 °
- Right ascension drift
- 0.45 °/day
- Declination drift
- 0.07 °/day
- Geocentric speed
- 27.5 km/s
- Semimajor axis
- 16.42 AU
- Perihelion distance
- 0.977 AU
- Eccentricity
- 0.967
- Argument of perihelion
- 202.5 °
- Ascending node
- 124.7 °
- Inclination
- 40.3 °
- Observed members
- 40
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 4) Jenniskens et al., 2016, Icarus, 266, 331
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)