year,month,day,hh,mm,lon,lat,mask,confidence,bright_t13,frp,line,sample
 2020, 12, 13, 05, 12,  116.517426,   37.683113,   8,  63,  306.101166,    8.386689,    72,  1574
 2020, 12, 13, 05, 12,  116.508751,   37.681808,   8,  68,  308.809326,    9.578529,    72,  1575
 2020, 12, 13, 05, 12,  116.921722,   37.844933,   9,  81,  321.210358,   16.513620,    87,  1524
 2020, 12, 13, 05, 12,  114.702278,   38.443233,   9,  80,  320.568939,   16.001833,   226,  1744
 2020, 12, 13, 05, 12,  114.700531,   38.449860,   8,  57,  303.787720,    6.696651,   227,  1744
 2020, 12, 13, 05, 12,  116.085434,   39.591770,   8,  51,  302.208435,    7.043038,   363,  1555
 2020, 12, 13, 05, 12,  122.567291,   40.642937,   8,  64,  306.880676,   13.036669,   405,   919
 2020, 12, 13, 05, 12,  122.398209,   40.937939,   9,  88,  332.394867,   34.784904,   452,   929