PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/25-08:43:00
G01     125.8          12.6                3.4 +/-    2.90       9.1 +/-    2.90  0.040 / 0.040
G07     59.8           68.9                5.7 +/-    0.56       6.0 +/-    0.56  0.040 / 0.050
G08     48.3           36.4                2.2 +/-    0.94       3.5 +/-    0.94  0.100 / 0.380
G09     174.1          29.5                6.4 +/-    1.57      11.4 +/-    1.57  0.130 / 0.370
G11     114.9          36.4                6.9 +/-    0.81      10.6 +/-    0.81  0.120 / 0.370
G13     320.6          13.3                1.4 +/-    1.73       3.7 +/-    1.73  0.130 / 0.370
G17     199.4          18.0                4.5 +/-    1.32      10.3 +/-    1.32  0.030 / 0.040
G18     100.7          17.4                4.8 +/-    1.75      11.3 +/-    1.75  0.020 / 0.040
G28     277.5          53.0                5.4 +/-    0.73       6.6 +/-    0.73  0.050 / 0.090
G30     332.5          60.6                3.3 +/-    0.93       3.8 +/-    0.93  0.040 / 0.070