PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/13-16:42:30
G10     254.8          30.5                7.3 +/-    1.44      12.7 +/-    1.44  0.040 / 0.050
G13     49.4           26.7                7.1 +/-    1.37      13.4 +/-    1.37  0.050 / 0.040
G15     80.7           57.8                7.8 +/-    0.88       9.0 +/-    0.88  0.130 / 0.440
G16     291.6          14.9                5.4 +/-    2.68      13.5 +/-    2.68  0.140 / 0.360
G20     276.7          53.9               10.0 +/-    1.02      12.1 +/-    1.02  0.070 / 0.210
G21     343.6          64.7                6.9 +/-    0.96       7.6 +/-    0.96  0.070 / 0.180
G26     265.0          13.5                6.9 +/-    0.52      17.7 +/-    0.52  0.030 / 0.040
G29     165.2          44.0                9.2 +/-    0.83      12.6 +/-    0.83  0.020 / 0.040