PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/07-15:27:40
G05     52.1           10.6                4.4 +/-    3.12      12.1 +/-    3.12  0.470 / 0.340
G10     242.0          18.0                7.8 +/-    2.29      17.9 +/-    2.29  0.450 / 0.390
G13     66.3           35.7                5.1 +/-    1.34       8.0 +/-    1.34  0.110 / 0.130
G15     106.5          56.2                7.7 +/-    0.52       9.0 +/-    0.52  0.110 / 0.140
G16     310.6          12.3                5.4 +/-    1.93      14.4 +/-    1.93  0.040 / 0.030
G18     255.6          50.4                9.0 +/-    2.62      11.3 +/-    2.62  0.030 / 0.030
G20     32.1           60.7                5.6 +/-    0.73       6.3 +/-    0.73  0.280 / 0.360
G21     327.1          56.6                5.6 +/-    0.38       6.5 +/-    0.38  0.140 / 0.330
G26     281.5          18.5                5.6 +/-    1.14      12.7 +/-    1.14  0.040 / 0.050
G29     158.3          57.6                7.9 +/-    0.34       9.2 +/-    0.34  0.040 / 0.050