PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/10-12:12:50
G01     117.8          18.8                5.0 +/-    1.56      11.3 +/-    1.56  0.030 / 0.020
G07     84.3           65.7                5.7 +/-    0.53       6.2 +/-    0.53  0.030 / 0.030
G08     43.9           28.7                3.5 +/-    1.93       6.3 +/-    1.93  0.020 / 0.030
G09     175.2          22.5                5.7 +/-    1.51      11.8 +/-    1.51  0.030 / 0.030
G11     103.4          40.4                4.2 +/-    0.81       6.1 +/-    0.81  0.140 / 0.200
G13     316.9          20.8                2.8 +/-    1.84       6.1 +/-    1.84  0.160 / 0.170
G17     201.6          27.0                3.8 +/-    1.06       7.1 +/-    1.06  0.150 / 0.380
G18     92.2           21.3                4.5 +/-    1.82       9.7 +/-    1.82  0.190 / 0.260
G28     294.9          57.8                5.3 +/-    1.15       6.1 +/-    1.15  0.120 / 0.210
G30     345.9          68.8                3.0 +/-    0.75       3.2 +/-    0.75  0.110 / 0.190