PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-13:58:10
G01     125.6          12.9                8.0 +/-    3.12      20.9 +/-    3.12  0.030 / 0.050
G07     58.1           69.3                7.1 +/-    0.61       7.5 +/-    0.61  0.050 / 0.050
G08     49.0           37.9                5.7 +/-    0.39       8.6 +/-    0.39  0.090 / 0.380
G09     176.9          32.8                9.2 +/-    1.32      15.3 +/-    1.32  0.100 / 0.370
G11     115.8          36.3                9.1 +/-    0.96      14.0 +/-    0.96  0.040 / 0.070
G13     320.6          13.3                4.5 +/-    2.04      11.7 +/-    2.04  0.040 / 0.070
G17     200.3          16.3                9.0 +/-    1.66      21.6 +/-    1.66  0.020 / 0.040
G18     101.9          17.5                9.2 +/-    2.19      21.6 +/-    2.19  0.030 / 0.030
G28     279.1          53.8                8.1 +/-    0.99       9.7 +/-    0.99  0.060 / 0.110
G30     334.3          61.6                6.8 +/-    0.63       7.7 +/-    0.63  0.050 / 0.120