PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/06-12:27:50
G01     118.4          18.4                5.2 +/-    1.84      11.9 +/-    1.84  0.030 / 0.030
G07     82.8           66.1                5.9 +/-    0.52       6.4 +/-    0.52  0.030 / 0.030
G08     44.2           29.4                4.3 +/-    1.22       7.6 +/-    1.22  0.030 / 0.020
G09     175.4          23.2                3.7 +/-    1.09       7.6 +/-    1.09  0.030 / 0.030
G11     104.4          40.2                5.2 +/-    0.96       7.6 +/-    0.96  0.130 / 0.170
G13     317.2          20.3                2.5 +/-    2.13       5.4 +/-    2.13  0.130 / 0.150
G17     201.5          26.2                3.1 +/-    1.90       5.8 +/-    1.90  0.190 / 0.330
G18     92.9           21.1                4.9 +/-    1.67      10.5 +/-    1.67  0.140 / 0.370
G28     293.8          57.6                4.8 +/-    1.18       5.6 +/-    1.18  0.110 / 0.200
G30     345.1          68.4                4.1 +/-    0.53       4.4 +/-    0.53  0.120 / 0.190