PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/15-15:12:30
G02     201.5          19.8               10.3 +/-    1.75      22.9 +/-    1.75  0.220 / 0.330
G06     166.8          57.4               10.5 +/-    0.65      12.2 +/-    0.65  0.130 / 0.220
G12     301.8          10.3               -7.1 +/-    7.34     -19.6 +/-    7.34  0.110 / 0.130
G13     225.8          12.0                8.7 +/-    1.17      23.3 +/-    1.17  0.090 / 0.110
G17     25.4           57.5                8.3 +/-    0.80       9.7 +/-    0.80  0.210 / 0.380
G19     316.0          70.2                8.5 +/-    0.74       8.9 +/-    0.74  0.180 / 0.630
G24     308.0          32.1                6.5 +/-    1.71      11.0 +/-    1.71  0.150 / 0.250
G28     89.5           39.0                8.4 +/-    1.86      12.5 +/-    1.86  0.030 / 0.040
G30     157.9          14.6               10.9 +/-    2.13      27.5 +/-    2.13  0.040 / 0.040