IAU 7 · PER
Perseids
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.
7 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
- 140.19 °
- Radiant right ascension
- 46.8 °
- Radiant declination
- 57.77 °
- Right ascension drift
- 1.38 °/day
- Declination drift
- 0.18 °/day
- Geocentric speed
- 59.49 km/s
- Semimajor axis
- 24 AU
- Perihelion distance
- 0.949 AU
- Eccentricity
- 0.96
- Argument of perihelion
- 150.4 °
- Ascending node
- 139.7 °
- Inclination
- 113 °
- Observed members
- Not reported
- Technique
- P
- Submitted on
- SD
- Reported parent body
- 109P/Swift-Tuttle
Reference: 1) Kresak and Porubcan, 1970
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
- 140.19 °
- Radiant right ascension
- 48.33 °
- Radiant declination
- 57.96 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 59.38 km/s
- Semimajor axis
- 71.4 AU
- Perihelion distance
- 0.953 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 151.3 °
- Ascending node
- 140.19 °
- Inclination
- 113.22 °
- Observed members
- 87
- Technique
- P
- Submitted on
- SD
- Reported parent body
- 109P/Swift-Tuttle
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
- annual
- Shower group
- 00000
- Peak solar longitude
- 139.4 °
- Radiant right ascension
- 47.3 °
- Radiant declination
- 58.2 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 59 km/s
- Semimajor axis
- Not reported
- Perihelion distance
- 0.948 AU
- Eccentricity
- 0.951
- Argument of perihelion
- 150.3 °
- Ascending node
- 139.4 °
- Inclination
- 112.7 °
- Observed members
- 33
- Technique
- P
- Submitted on
- SD
- Reported parent body
- 109P/Swift-Tuttle
Reference: 3) Jopek et al., 2003
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
- 2002/06
- Shower group
- 00000
- Peak solar longitude
- 139.5 °
- Radiant right ascension
- 46.9 °
- Radiant declination
- 56.9 °
- Right ascension drift
- 1.23 °/day
- Declination drift
- 0.27 °/day
- Geocentric speed
- 62.1 km/s
- Semimajor axis
- -6.4 AU
- Perihelion distance
- 0.963 AU
- Eccentricity
- 1.15
- Argument of perihelion
- 155.1 °
- Ascending node
- 139.8 °
- Inclination
- 116.2 °
- Observed members
- 361
- Technique
- R
- Submitted on
- SD
- Reported parent body
- 109P/Swift-Tuttle
Reference: 4) Brown et al., 2008
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
- 2007/08
- Shower group
- 00000
- Peak solar longitude
- 139.2 °
- Radiant right ascension
- 47.2 °
- Radiant declination
- 57.77 °
- Right ascension drift
- 1.17 °/day
- Declination drift
- 0.17 °/day
- Geocentric speed
- 58.7 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
- 3,524
- Technique
- T
- Submitted on
- SD
- Reported parent body
- 109P/Swift-Tuttle
Reference: 5) SonotaCo, 2009
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
- 2002/08
- Shower group
- 00000
- Peak solar longitude
- 140 °
- Radiant right ascension
- 48 °
- Radiant declination
- 57.2 °
- Right ascension drift
- 1.39 °/day
- Declination drift
- 0.29 °/day
- Geocentric speed
- 61.4 km/s
- Semimajor axis
- -9.91 AU
- Perihelion distance
- 0.956 AU
- Eccentricity
- 1.096
- Argument of perihelion
- 153.12 °
- Ascending node
- 140 °
- Inclination
- 115.6 °
- Observed members
- 2,024
- Technique
- R
- Submitted on
- SD
- Reported parent body
- 109P/Swift-Tuttle
Reference: 6) Brown et al., 2010
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 6
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 140 °
- Radiant right ascension
- 48.2 °
- Radiant declination
- 58.1 °
- Right ascension drift
- 1.4 °/day
- Declination drift
- 0.26 °/day
- Geocentric speed
- 59.1 km/s
- Semimajor axis
- 9.57 AU
- Perihelion distance
- 0.949 AU
- Eccentricity
- 0.95
- Argument of perihelion
- 150.4 °
- Ascending node
- 139.3 °
- Inclination
- 113.1 °
- Observed members
- 4,367
- Technique
- T
- Submitted on
- SD
- Reported parent body
- 109P/Swift-Tuttle
Reference: 7) Jenniskens et al., 2016, Icarus, 266, 331
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)