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                9.2 +/-    2.15      22.8 +/-    2.15  0.040 / 0.030
G08     258.4          15.0               10.0 +/-    1.61      25.0 +/-    1.61  0.040 / 0.040
G10     74.6           54.5               10.1 +/-    0.82      12.2 +/-    0.82  0.110 / 0.250
G11     305.1          22.2                9.8 +/-    1.89      20.3 +/-    1.89  0.100 / 0.250
G14     286.8          70.1               10.7 +/-    0.82      11.3 +/-    0.82  0.180 / 0.330
G20     102.3          31.5                9.5 +/-    0.87      16.2 +/-    0.87  0.180 / 0.290
G27     228.4          11.6               10.0 +/-    0.72      26.8 +/-    0.72  0.130 / 0.210
G31     178.7          36.1               13.1 +/-    1.23      20.4 +/-    1.23  0.150 / 0.240
G32     359.1          70.1                9.5 +/-    0.51      10.0 +/-    0.51  0.070 / 0.080