IAU 172 · ZPE
Daytime zeta 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.
3 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
- 78.6 °
- Radiant right ascension
- 64.5 °
- Radiant declination
- 27.5 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 25.1 km/s
- Semimajor axis
- 1.492 AU
- Perihelion distance
- 0.365 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 60.5 °
- Ascending node
- 81.5 °
- Inclination
- 6.5 °
- Observed members
- 56
- Technique
- R
- Submitted on
- SD
- Reported parent body
- 2P/Encke
Reference: 1) Sekanina, 1976
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
- 78.6 °
- Radiant right ascension
- 63.8 °
- Radiant declination
- 27.1 °
- Right ascension drift
- 1.1 °/day
- Declination drift
- 0.4 °/day
- Geocentric speed
- 28.8 km/s
- Semimajor axis
- 2.33 AU
- Perihelion distance
- 0.35 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 61 °
- Ascending node
- 77 °
- Inclination
- 8 °
- Observed members
- Not reported
- Technique
- Not reported
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 2) Lovell, 1954
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
- 74.5 °
- Radiant right ascension
- 67.4 °
- Radiant declination
- 23.4 °
- Right ascension drift
- 1 °/day
- Declination drift
- 0.2 °/day
- Geocentric speed
- 26.4 km/s
- Semimajor axis
- 1.55 AU
- Perihelion distance
- 0.335 AU
- Eccentricity
- 0.7841
- Argument of perihelion
- 58.4 °
- Ascending node
- 75 °
- Inclination
- 3.8 °
- Observed members
- 843
- Technique
- R
- Submitted on
- SD
- Reported parent body
- 2P/Encke
Reference: 3) Brown et al., 2008
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)