PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/02-14:43:10
G01     58.0           29.8                7.7 +/-    0.76      13.5 +/-    0.76  0.050 / 0.060
G07     143.1          20.4               10.6 +/-    1.32      23.2 +/-    1.32  0.040 / 0.050
G11     47.0           21.3                6.4 +/-    2.52      13.6 +/-    2.52  0.060 / 0.110
G13     259.8          34.6                8.0 +/-    1.31      12.8 +/-    1.31  0.060 / 0.110
G15     294.9          15.2                6.3 +/-    1.93      15.7 +/-    1.93  0.070 / 0.240
G17     270.2          78.1                9.9 +/-    0.78      10.1 +/-    0.78  0.080 / 0.230
G18     40.9           11.2                6.6 +/-    1.60      17.8 +/-    1.60  0.040 / 0.050
G19     233.9          49.1               12.3 +/-    1.16      15.7 +/-    1.16  0.030 / 0.060
G28     38.7           56.1                8.5 +/-    0.66      10.0 +/-    0.66  0.050 / 0.140
G30     145.4          51.6               10.8 +/-    1.58      13.4 +/-    1.58  0.070 / 0.160