PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/27-10:57:50
G01     119.9          17.2                2.0 +/-    1.01       4.6 +/-    1.01  0.030 / 0.040
G07     78.4           66.8                3.6 +/-    0.82       3.9 +/-    0.82  0.030 / 0.040
G08     44.6           30.1                1.7 +/-    1.16       3.0 +/-    1.16  0.030 / 0.040
G09     175.2          24.5                3.2 +/-    2.03       6.4 +/-    2.03  0.020 / 0.030
G11     106.1          39.5                3.1 +/-    0.63       4.6 +/-    0.63  0.110 / 0.220
G13     318.0          18.9                1.8 +/-    1.53       4.1 +/-    1.53  0.090 / 0.250
G17     200.7          25.3                2.6 +/-    1.67       5.1 +/-    1.67  0.080 / 0.170
G18     94.5           20.4                3.0 +/-    0.69       6.5 +/-    0.69  0.080 / 0.160
G28     290.3          56.8                2.1 +/-    0.67       2.4 +/-    0.67  0.120 / 0.240
G30     341.2          66.4                1.2 +/-    0.91       1.3 +/-    0.91  0.110 / 0.400