PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-09:28:00
G03     191.8          21.2                5.1 +/-    2.28      10.8 +/-    2.28  0.230 / 0.400
G07     291.4          38.1                5.3 +/-    2.24       8.0 +/-    2.24  0.340 / 0.370
G08     139.2          29.5                6.6 +/-    0.83      11.7 +/-    0.83  0.050 / 0.090
G09     321.3          66.8                4.0 +/-    0.51       4.3 +/-    0.51  0.060 / 0.110
G16     42.3           35.1                3.1 +/-    1.47       4.9 +/-    1.47  0.050 / 0.060
G23     118.3          78.6                5.6 +/-    0.43       5.7 +/-    0.43  0.060 / 0.080
G27     98.7           34.2                5.3 +/-    1.47       8.6 +/-    1.47  0.030 / 0.020
G30     274.0          12.1                7.4 +/-    3.46      19.6 +/-    3.46  0.020 / 0.020