sta , lon, lat, time, Niskin,BTL_p, BTL_p_flag, BTL_t, BTL_t_flag, BTL_s, BTL_s_flag, BTL_t_draw, BTL_t_draw_flag, BTL_o, BTL_o_flag, BTL_fl, BTL_fl_flag, O2_Winkler, O2_Winkler_flag, 
308, 5.417, 60.873, 2020-09-17 12:08, 2, 470.9, 0, 8.187, 0, 34.99, 1, 10.2, 0, 2.2, 1, nan, nan, 104.7, nan,
308, 5.417, 60.873, 2020-09-17 12:08, 3, 350.7, 0, 8.18, 0, 34.98, 1, 10.5, 0, 2.4, 1, nan, nan, 111.7, nan,
308, 5.417, 60.873, 2020-09-17 12:08, 4, 266.5, 0, 8.246, 0, 34.94, 1, 10.9, 0, 3.5, 1, nan, nan, 156.2, nan,
308, 5.417, 60.873, 2020-09-17 12:08, 5, 217.3, 0, 8.272, 0, 34.94, 1, 11.1, 0, 3.9, 1, nan, nan, 176.0, nan,
308, 5.417, 60.873, 2020-09-17 12:08, 6, 169.5, 0, 8.27, 0, 34.93, 1, 10.2, 0, 3.5, 1, nan, nan, 158.4, nan,
308, 5.417, 60.873, 2020-09-17 12:08, 7, 64.3, 0, 8.49, 0, 34.55, 1, 9.7, 0, 4.7, 1, nan, nan, 215.9, nan,
308, 5.417, 60.873, 2020-09-17 12:08, 8, 29.2, 0, 9.732, 0, 33.46, 1, 11.1, 0, 5.8, 1, nan, nan, 268.0, nan,