PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/23-19:57:40
G01     320.2          15.1                8.3 +/-    1.89      20.7 +/-    1.89  0.140 / 0.370
G08     258.4          15.0                8.9 +/-    1.97      22.2 +/-    1.97  0.180 / 0.330
G10     74.6           54.5                9.2 +/-    0.37      11.0 +/-    0.37  0.040 / 0.050
G11     305.1          22.2                8.0 +/-    1.33      16.8 +/-    1.33  0.050 / 0.050
G14     286.8          70.1               10.5 +/-    0.56      11.1 +/-    0.56  0.110 / 0.280
G20     102.3          31.5               10.1 +/-    0.74      17.1 +/-    0.74  0.120 / 0.250
G27     228.4          11.6                8.4 +/-    3.07      22.6 +/-    3.07  0.140 / 0.410
G31     178.7          36.1               13.1 +/-    2.61      20.4 +/-    2.61  0.160 / 0.390
G32     359.1          70.1                9.8 +/-    0.86      10.3 +/-    0.86  0.070 / 0.080