geosphere, leaflet, leaflet.extras, plotKML, plyr, purrr,
rgdal, sp, spacetime, stats, suncalc, tcltk, utils
geosphere, htmlwidgets, leaflet, leaflet.extras, plotKML,
plyr, purrr, rgdal, sp, spacetime, stats, suncalc, tcltk, utils
geosphere, htmlwidgets, leaflet, leaflet.extras, plyr, purrr,
sp, sf, stats, suncalc, tcltk, utils