PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-22:27:50
G01     246.6          32.9                8.1 +/-    1.51      13.3 +/-    1.51  0.030 / 0.050
G03     314.9          47.4                4.7 +/-    0.61       6.1 +/-    0.61  0.040 / 0.050
G11     234.4          10.6                8.8 +/-    4.41      24.2 +/-    4.41  0.060 / 0.130
G14     64.8           38.1                6.5 +/-    0.56       9.7 +/-    0.56  0.070 / 0.110
G16     164.3          19.9                9.3 +/-    1.47      20.5 +/-    1.47  0.110 / 0.410
G22     299.1          68.9                8.3 +/-    1.07       8.8 +/-    1.07  0.100 / 0.280
G23     289.4          21.2                7.3 +/-    1.10      15.7 +/-    1.10  0.030 / 0.050
G26     135.0          40.7                9.1 +/-    0.86      13.1 +/-    0.86  0.030 / 0.050
G31     39.7           56.6                6.8 +/-    0.49       8.0 +/-    0.49  0.060 / 0.170
G32     80.4           21.2                6.5 +/-    1.32      14.0 +/-    1.32  0.090 / 0.180