PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/29-12:13:10
G01     320.7          12.4                1.2 +/-    2.52       3.3 +/-    2.52  0.040 / 0.050
G08     267.8          16.0                5.7 +/-    1.43      13.8 +/-    1.43  0.040 / 0.060
G10     68.8           56.8                3.7 +/-    0.72       4.4 +/-    0.72  0.190 / 0.360
G11     310.1          17.9                3.7 +/-    1.45       8.5 +/-    1.45  0.170 / 0.420
G14     272.8          66.1                4.7 +/-    0.57       5.1 +/-    0.57  0.050 / 0.130
G18     310.3          34.4                4.2 +/-    1.77       6.8 +/-    1.77  0.050 / 0.130
G21     155.0          10.4                4.8 +/-    1.46      13.3 +/-    1.46  0.030 / 0.030
G27     228.0          12.7                4.0 +/-    5.65      10.4 +/-    5.65  0.030 / 0.030
G31     176.2          36.4                7.9 +/-    1.24      12.2 +/-    1.24  0.200 / 0.370
G32     356.7          71.1                4.3 +/-    0.55       4.5 +/-    0.55  0.210 / 0.470