PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/17-02:42:50
G01     108.0          23.1                6.3 +/-    0.92      12.9 +/-    0.92  0.030 / 0.040
G07     99.8           61.4                5.3 +/-    0.92       5.9 +/-    0.92  0.030 / 0.030
G08     42.1           22.2                2.7 +/-    2.34       5.6 +/-    2.34  0.100 / 0.160
G09     172.2          13.2                5.9 +/-    1.60      15.3 +/-    1.60  0.110 / 0.170
G11     99.7           44.9                6.5 +/-    0.82       8.7 +/-    0.82  0.370 / 0.480
G13     311.7          27.7                2.5 +/-    1.62       4.6 +/-    1.62  0.190 / 0.250
G17     203.0          34.7                6.3 +/-    0.97      10.1 +/-    0.97  0.060 / 0.070
G19     206.8          11.8                1.0 +/-    9.20       2.8 +/-    9.20  0.090 / 0.070
G28     294.9          55.2                4.5 +/-    1.47       5.3 +/-    1.47  0.060 / 0.080
G30     352.9          73.6                3.7 +/-    0.35       3.8 +/-    0.35  0.060 / 0.070