PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/06-16:42:50
G02     208.5          44.4               12.0 +/-    0.42      16.3 +/-    0.42  0.080 / 0.060
G06     110.8          78.4               10.0 +/-    0.61      10.2 +/-    0.61  0.070 / 0.070
G12     314.7          28.5                6.9 +/-    1.03      12.5 +/-    1.03  0.090 / 0.090
G17     47.1           40.1                7.2 +/-    1.91      10.5 +/-    1.91  0.090 / 0.100
G19     16.4           59.9                9.1 +/-    0.96      10.3 +/-    0.96  0.040 / 0.030
G24     281.6          42.8                8.5 +/-    2.18      11.8 +/-    2.18  0.030 / 0.030
G28     112.8          23.3                9.6 +/-    1.69      19.4 +/-    1.69  0.060 / 0.040