PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/13-22:28:10
G01     240.7          29.2               10.2 +/-    1.87      18.2 +/-    1.87  0.040 / 0.040
G03     312.0          53.2                6.7 +/-    0.55       8.1 +/-    0.55  0.030 / 0.040
G14     70.6           34.6                7.2 +/-    1.15      11.6 +/-    1.15  0.090 / 0.150
G16     161.5          25.6               12.6 +/-    1.86      24.2 +/-    1.86  0.090 / 0.150
G22     284.5          73.2               10.4 +/-    0.73      10.8 +/-    0.73  0.030 / 0.040
G23     293.9          24.9               10.5 +/-    1.41      20.6 +/-    1.41  0.030 / 0.040
G26     128.4          45.4               10.9 +/-    1.20      14.6 +/-    1.20  0.080 / 0.220
G31     39.9           50.4                6.8 +/-    0.51       8.5 +/-    0.51  0.080 / 0.220
G32     85.4           17.5                8.1 +/-    0.94      18.9 +/-    0.94  0.050 / 0.130