PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/19-14:27:30
G01     290.7          40.1                9.3 +/-    6.53      13.5 +/-    6.53  0.070 / 0.060
G03     312.8          21.3                5.6 +/-    4.40      12.0 +/-    4.40  0.060 / 0.050
G10     119.9          28.8                9.1 +/-    0.77      16.4 +/-    0.77  0.050 / 0.050
G11     267.9          25.5                8.5 +/-    1.00      16.3 +/-    1.00  0.040 / 0.080
G14     20.2           60.2                8.1 +/-    1.31       9.2 +/-    1.31  0.070 / 0.100
G22     314.4          41.6                7.4 +/-    0.92      10.5 +/-    0.92  0.090 / 0.100
G25     67.4           19.2                7.0 +/-    1.51      15.7 +/-    1.51  0.030 / 0.020
G31     118.8          79.0                9.9 +/-    0.62      10.1 +/-    0.62  0.030 / 0.020
G32     52.2           40.8                6.3 +/-    0.96       9.0 +/-    0.96  0.060 / 0.070