PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-12:43:00
G02     343.3          79.3                2.5 +/-    0.67       2.5 +/-    0.67  0.040 / 0.080
G05     166.4          31.2                6.6 +/-    0.98      11.3 +/-    0.98  0.050 / 0.100
G06     40.4           45.0                1.0 +/-    0.47       1.3 +/-    0.47  0.050 / 0.310
G12     313.5          68.5                2.1 +/-    0.91       2.2 +/-    0.91  0.100 / 0.250
G17     86.2           10.6                3.4 +/-    2.43       9.3 +/-    2.43  0.090 / 0.220
G19     75.1           26.7                3.7 +/-    0.77       7.0 +/-    0.77  0.110 / 0.250
G24     230.8          24.0                3.1 +/-    1.46       6.1 +/-    1.46  0.020 / 0.030
G25     317.4          28.9                1.7 +/-    1.45       3.0 +/-    1.45  0.020 / 0.040
G29     287.5          12.6                4.2 +/-    1.99      11.0 +/-    1.99  0.070 / 0.150