PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/04-00:12:30
G02     238.2          75.6               13.1 +/-    0.80      13.5 +/-    0.80  0.060 / 0.080
G05     171.3          15.7               17.9 +/-    1.94      43.9 +/-    1.94  0.050 / 0.060
G06     41.2           59.6               12.3 +/-    0.68      14.0 +/-    0.68  0.140 / 0.260
G12     321.6          50.5               12.9 +/-    0.98      16.1 +/-    0.98  0.110 / 0.190
G17     67.8           26.5               11.1 +/-    0.93      20.9 +/-    0.93  0.070 / 0.100
G19     54.7           40.6               12.0 +/-    0.74      17.3 +/-    0.74  0.080 / 0.100
G24     246.9          35.7               15.1 +/-    1.23      23.7 +/-    1.23  0.030 / 0.040