The Supplementary files named xyzt08XX.csv, where XX = 07, 09, or 10, contain the 3D coordinates in .csv format. XX represents the day in August, 2021 when the data was collected. from Statistical analysis reveals the onset of synchrony in sparse swarms of <i>Photinus knulli</i> fireflies

The first 3 columns report the x-, y-, and z-coordinates, with x,y following the horizontal plane, and z oriented vertically upwards. Units are meters. The 4^th column is the time, expressed in frame number (frame rate was 60fps.) Additionally, the data is also made available as a Matlab .mat structure, named pk08XX, also containing the 2D coordinates extracted from each camera (.xyt1, .xyt2) and triangulation parameters.