year,month,day,hh,mm,lon,lat,mask,confidence,bright_t13,frp,line,sample
 2020, 09, 12, 04, 02,  121.558899,   56.458092,   8,  77,  316.532379,   11.391402,   200,  2003
 2020, 09, 12, 04, 02,  121.554298,   56.464912,   9,  80,  320.304047,   14.507697,   201,  2003
 2020, 09, 12, 04, 02,  121.945763,   56.704372,   9,  93,  343.405945,   37.437134,   223,  1968
 2020, 09, 12, 04, 02,  121.952538,   56.704639,   8,  68,  322.482605,   14.320893,   224,  1967
 2020, 09, 12, 04, 02,  121.939445,   56.701973,   9,  87,  330.773132,   22.581825,   224,  1968
 2020, 09, 12, 04, 02,  121.935982,   56.708935,   8,  52,  314.699432,    9.242984,   225,  1968
 2020, 09, 12, 04, 02,  122.027733,   56.758144,   9,  84,  338.266022,   29.780420,   229,  1960
 2020, 09, 12, 04, 02,  121.999939,   56.752518,   9, 100,  372.312103,   95.673637,   229,  1962
 2020, 09, 12, 04, 02,  122.036766,   56.767586,   8,  75,  333.290192,   24.352551,   230,  1959
 2020, 09, 12, 04, 02,  122.022972,   56.764809,   9,  98,  355.770050,   57.432095,   230,  1960
 2020, 09, 12, 04, 02,  122.009308,   56.762039,   8,  60,  332.317047,   22.388367,   230,  1961
 2020, 09, 12, 04, 02,  121.995567,   56.759266,   9, 100,  375.853333,  105.861618,   230,  1962
 2020, 09, 12, 04, 02,  122.004456,   56.768692,   9,  90,  337.001831,   29.642056,   231,  1961
 2020, 09, 12, 04, 02,  122.679718,   57.188313,   9,  80,  320.302551,   11.614848,   271,  1898
 2020, 09, 12, 04, 02,  122.671288,   57.187931,   9,  82,  323.100342,   13.500320,   272,  1898
 2020, 09, 12, 04, 02,  142.925446,   59.654976,   9,  84,  326.588257,   25.513744,   328,   534
 2020, 09, 12, 04, 02,  133.038055,   59.600441,   8,  62,  311.411591,   10.606225,   407,  1111
 2020, 09, 12, 04, 02,  133.020309,   59.598728,   8,  75,  314.702850,   13.266075,   407,  1112
 2020, 09, 12, 04, 02,  133.017578,   59.606209,   9,  89,  346.894165,   53.981396,   408,  1112
 2020, 09, 12, 04, 02,  148.544312,   60.270477,   8,  71,  311.111481,   25.884117,   424,   187
 2020, 09, 12, 04, 02,  148.520798,   60.270996,   8,  64,  306.506500,   20.014347,   424,   188
 2020, 09, 12, 04, 02,  124.560326,   58.935516,   9,  80,  320.346985,   11.560726,   472,  1685
 2020, 09, 12, 04, 02,  124.547310,   58.933331,   8,  73,  315.263733,    8.559743,   472,  1686