PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-08:43:10
G01     123.4          13.1                4.7 +/-    1.86      12.1 +/-    1.86  0.070 / 0.080
G07     66.0           67.9                6.3 +/-    0.50       6.7 +/-    0.50  0.060 / 0.090
G08     50.1           40.1                4.7 +/-    0.89       6.8 +/-    0.89  0.260 / 0.350
G09     177.1          33.0               10.5 +/-    1.61      17.4 +/-    1.61  0.110 / 0.280
G11     116.9          37.8                8.2 +/-    1.04      12.3 +/-    1.04  0.020 / 0.030
G13     319.9          15.1                1.2 +/-    2.25       3.0 +/-    2.25  0.020 / 0.030
G17     200.4          15.1                3.4 +/-    3.24       8.5 +/-    3.24  0.110 / 0.480
G18     100.4          17.9                5.8 +/-    1.68      13.5 +/-    1.68  0.120 / 0.530
G28     272.5          48.7                6.4 +/-    0.64       8.2 +/-    0.64  0.090 / 0.110
G30     333.8          61.9                5.8 +/-    0.93       6.5 +/-    0.93  0.070 / 0.080