cycle, date & time, latitude, longitude, voltage, voltage pump on, voltage no load, surface pressure, maximum pressure
001, 2017/11/28 04:34:00,   11.905,  113.695,    NaN,    NaN,  24.90, -0.70,  995.10
002, 2017/12/01 10:31:00,   12.068,  113.775,    NaN,    NaN,  24.80, -0.80,  994.20
003, 2017/12/06 12:52:00,   12.231,  113.843,    NaN,    NaN,  24.80, -0.70, 1998.40
004, 2017/12/11 18:47:00,   12.346,  113.846,    NaN,    NaN,  24.80, -0.50, 1488.10
005, 2017/12/16 16:40:00,   12.465,  113.843,    NaN,    NaN,  24.80, -0.70, 1150.90