20170412_CARDIO.gpx Cycling 50.3 2017-04-12T17:00:36.000Z dgps 4 5 6.2 728 1 3 0.0 2017-04-12T17:00:37.000Z 3d 5 3.6 5 619.1 2.01 4 2017-04-12T17:00:38.000Z something_not_in_the_spec