year,month,day,hh,mm,lon,lat,mask,confidence,bright_t13,frp,line,sample
 2020, 08, 23, 05, 03,  116.743393,    3.503322,   8,  65,  315.026093,   21.696810,    28,  2557
 2020, 08, 23, 05, 03,  116.734474,    3.506218,   8,  41,  305.398834,    9.791158,    34,  2557
 2020, 08, 23, 05, 03,  116.598503,    3.622002,   8,  45,  305.230652,    3.516927,    53,  2573
 2020, 08, 23, 05, 03,  116.592613,    3.621029,   8,  47,  307.523621,    4.532492,    53,  2574
 2020, 08, 23, 05, 03,  116.573517,    3.628232,   8,  44,  306.018341,    4.056023,    54,  2577
 2020, 08, 23, 05, 03,  116.584091,    3.640340,   8,  60,  309.794922,    6.137823,    55,  2575
 2020, 08, 23, 05, 03,  116.578217,    3.639372,   8,  37,  306.123016,    4.127343,    55,  2576
 2020, 08, 23, 05, 03,  116.643951,    3.777581,   8,  67,  308.244110,    6.202102,    73,  2560
 2020, 08, 23, 05, 03,  116.638283,    3.776657,   8,  64,  306.497314,    5.237447,    73,  2561
 2020, 08, 23, 05, 03,  124.610588,    6.764277,   8,  58,  310.555481,    2.922417,   329,  1538
 2020, 08, 23, 05, 03,  116.214027,    5.458067,   8,  60,  305.017853,    3.907300,   332,  2566
 2020, 08, 23, 05, 03,  125.724579,    7.524147,   8,  59,  311.069336,    3.207862,   417,  1363
 2020, 08, 23, 05, 03,  116.799568,    6.150516,   8,  71,  311.499237,   15.870567,   423,  2496
 2020, 08, 23, 05, 03,  116.935242,    6.329955,   8,  56,  303.554352,    8.008930,   444,  2480
 2020, 08, 23, 05, 03,  117.281052,    6.503967,   9,  94,  345.755890,   63.491318,   461,  2441
 2020, 08, 23, 05, 03,  117.283722,    6.499463,   8,  69,  339.431366,   49.417995,   465,  2440