PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-21:42:10
G02     222.4          66.4               13.9 +/-    0.74      15.0 +/-    0.74  0.040 / 0.060
G06     46.6           67.5               12.6 +/-    0.56      13.5 +/-    0.56  0.040 / 0.050
G12     320.7          43.2               11.9 +/-    0.55      16.4 +/-    0.55  0.070 / 0.110
G17     61.4           30.3               13.0 +/-    0.87      22.6 +/-    0.87  0.070 / 0.080
G19     44.5           46.7               12.9 +/-    0.93      17.0 +/-    0.93  0.030 / 0.030
G24     256.5          39.7               15.4 +/-    3.47      22.5 +/-    3.47  0.030 / 0.030