PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/13-22:43:00
G03     198.7          40.4               16.2 +/-    1.69      23.4 +/-    1.69  0.080 / 0.160
G07     271.1          25.5               12.5 +/-    2.30      24.1 +/-    2.30  0.060 / 0.190
G08     155.1          11.3                7.5 +/-   22.57      20.4 +/-   22.57  0.040 / 0.050
G09     317.2          41.9               11.1 +/-    2.06      15.6 +/-    2.06  0.030 / 0.050
G16     60.0           59.6               10.3 +/-    0.35      11.8 +/-    0.35  0.110 / 0.150
G22     183.2          24.8               12.4 +/-    2.10      24.2 +/-    2.10  0.100 / 0.150
G23     353.0          75.1                9.9 +/-    0.60      10.3 +/-    0.60  0.240 / 0.400
G26     44.7           29.9                7.4 +/-    1.53      12.9 +/-    1.53  0.230 / 0.320
G27     119.5          22.4               13.8 +/-    1.08      28.6 +/-    1.08  0.110 / 0.150