For each estimation interval: time is the middle of the interval, nINT is the number of observing periods and nPER is the number of Perseids involved. ZHR = (1 + sum nPER) / sum(Teff/C) where Teff is the effective observing time and C is the total correction for limiting magnitude, clouds and zenith correction. The solar longitudes refer to equinox J2000.0.
Observer statisticsData has been received from 28 observers in 18 countries. Thank you for your efforts!
Spatial distribution