PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-17:58:10
G10     260.3          33.3                9.5 +/-    1.86      15.5 +/-    1.86  0.090 / 0.210
G13     46.0           24.3                9.2 +/-    2.11      18.3 +/-    2.11  0.110 / 0.190
G15     66.2           52.1                9.8 +/-    1.00      12.1 +/-    1.00  0.030 / 0.040
G16     291.4          12.2                7.8 +/-    2.13      20.7 +/-    2.13  0.030 / 0.040
G18     289.8          62.8                9.8 +/-    0.80      10.8 +/-    0.80  0.140 / 0.280
G20     49.3           41.0                7.9 +/-    0.89      11.3 +/-    0.89  0.140 / 0.270
G21     358.7          69.8               10.3 +/-    0.84      10.9 +/-    0.84  0.040 / 0.090
G26     261.9          10.8                8.5 +/-    2.77      23.3 +/-    2.77  0.060 / 0.070
G27     320.4          15.1                7.7 +/-    1.75      19.1 +/-    1.75  0.110 / 0.190
G29     164.5          32.3               11.9 +/-    1.47      20.0 +/-    1.47  0.140 / 0.140