PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/07-12:27:50
G10     272.3          40.7                6.0 +/-    1.14       8.6 +/-    1.14  0.100 / 0.110
G13     40.2           15.2                2.6 +/-    2.36       6.3 +/-    2.36  0.110 / 0.110
G15     53.7           43.4                4.3 +/-    0.94       5.9 +/-    0.94  0.060 / 0.100
G20     55.3           35.9                4.0 +/-    1.52       6.2 +/-    1.52  0.070 / 0.090
G21     27.4           75.1                5.0 +/-    0.98       5.1 +/-    0.98  0.030 / 0.030
G24     117.0          16.9                5.1 +/-    1.37      12.1 +/-    1.37  0.030 / 0.030
G27     315.5          23.5                3.9 +/-    1.31       8.0 +/-    1.31  0.120 / 0.060
G29     167.6          24.2                5.1 +/-    1.43      10.2 +/-    1.43  0.130 / 0.050
G32     205.1          14.1                2.9 +/-    4.08       7.5 +/-    4.08  0.120 / 0.210