PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/12-07:12:50
G01     75.3           33.2                3.2 +/-    1.27       5.3 +/-    1.27  0.050 / 0.080
G07     135.0          32.9                7.7 +/-    1.46      12.8 +/-    1.46  0.050 / 0.080
G11     55.2           32.1                3.7 +/-    1.52       6.1 +/-    1.52  0.090 / 0.080
G13     278.9          38.2                4.9 +/-    1.43       7.3 +/-    1.43  0.060 / 0.090
G15     308.1          12.9                3.5 +/-    1.68       9.1 +/-    1.68  0.050 / 0.080
G17     227.3          68.4                7.9 +/-    0.75       8.4 +/-    0.75  0.050 / 0.090
G18     50.1           18.4                3.2 +/-    4.91       7.2 +/-    4.91  0.090 / 0.110
G19     221.2          35.5                6.7 +/-    1.88      10.6 +/-    1.88  0.070 / 0.090
G28     9.3            60.6                4.8 +/-    1.70       5.4 +/-    1.70  0.160 / 0.270
G30     130.8          67.4                7.4 +/-    0.89       7.9 +/-    0.89  0.400 / 0.280