PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/20-14:12:50
G07     59.0           67.5                7.8 +/-    0.51       8.4 +/-    0.51  0.030 / 0.030
G08     53.2           42.6                7.4 +/-    0.68      10.4 +/-    0.68  0.040 / 0.040
G09     179.1          39.7               10.7 +/-    1.17      15.7 +/-    1.17  0.060 / 0.090
G11     120.1          34.9                8.6 +/-    0.97      13.6 +/-    0.97  0.060 / 0.090
G13     321.2          10.9               -4.0 +/-   23.27     -11.0 +/-   23.27  0.060 / 0.120
G17     199.8          11.2                0.2 +/-   22.32       0.4 +/-   22.32  0.070 / 0.100
G18     104.4          15.6                8.7 +/-    1.06      21.4 +/-    1.06  0.190 / 0.410
G28     267.3          47.2                8.9 +/-    0.50      11.7 +/-    0.50  0.290 / 0.370
G30     333.9          61.2                7.9 +/-    0.57       8.9 +/-    0.57  0.080 / 0.070