PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-10:12:50
G01     64.1           31.1                5.3 +/-    0.82       9.1 +/-    0.82  0.080 / 0.130
G07     139.4          25.3                5.6 +/-    1.35      11.0 +/-    1.35  0.090 / 0.130
G11     51.1           29.4                4.3 +/-    0.99       7.7 +/-    0.99  0.040 / 0.030
G13     267.3          37.8                7.6 +/-    2.71      11.4 +/-    2.71  0.040 / 0.030
G15     298.9          15.7                3.5 +/-    1.33       8.6 +/-    1.33  0.100 / 0.090
G17     239.1          70.8                9.1 +/-    0.62       9.5 +/-    0.62  0.130 / 0.090
G18     45.0           15.6                3.5 +/-    2.52       8.7 +/-    2.52  0.170 / 0.270
G19     226.9          48.2                8.7 +/-    2.33      11.2 +/-    2.33  0.100 / 0.330
G28     13.3           60.7                6.4 +/-    1.33       7.3 +/-    1.33  0.040 / 0.030
G30     140.3          59.3                8.2 +/-    0.43       9.4 +/-    0.43  0.040 / 0.040