PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/11-13:28:00
G03     240.8          69.3                8.3 +/-    0.61       8.8 +/-    0.61  0.070 / 0.150
G09     301.9          16.2                4.0 +/-    2.28       9.6 +/-    2.28  0.070 / 0.190
G14     96.3           19.8                7.0 +/-    0.79      15.4 +/-    0.79  0.050 / 0.050
G16     127.7          57.6                8.4 +/-    0.43       9.7 +/-    0.43  0.060 / 0.050
G22     190.4          54.8                8.4 +/-    1.26      10.1 +/-    1.26  0.060 / 0.080
G23     321.2          51.3                7.2 +/-    1.69       8.9 +/-    1.69  0.060 / 0.070
G26     70.5           51.3                6.5 +/-    0.39       8.1 +/-    0.39  0.040 / 0.050
G31     51.7           19.5                5.5 +/-    0.48      12.2 +/-    0.48  0.040 / 0.050