Lon,     Lat, YearMmDd, HhMm,  Dur
 -81.509,  31.891, 20170117, 1830, 0400
-122.271,  56.541, 20170117, 0930, 2400
-122.254,  56.547, 20170117, 0930, 2400
-107.332,  54.052, 20170117, 2026, 2400