PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-13:58:10
G03     194.0          29.6               11.4 +/-    1.57      20.2 +/-    1.57  0.110 / 0.160
G07     280.8          31.6               13.1 +/-    1.60      22.3 +/-    1.60  0.140 / 0.210
G08     149.7          19.4               12.2 +/-    1.12      27.2 +/-    1.12  0.090 / 0.100
G09     320.4          53.5               10.0 +/-    0.66      12.1 +/-    0.66  0.120 / 0.110
G16     46.4           46.0                9.3 +/-    1.03      12.4 +/-    1.03  0.220 / 0.300
G22     177.9          12.3               10.1 +/-    2.47      26.9 +/-    2.47  0.280 / 0.320
G23     72.9           81.5                9.9 +/-    0.75      10.0 +/-    0.75  0.020 / 0.020
G26     42.9           17.7                8.8 +/-    3.84      20.4 +/-    3.84  0.020 / 0.030
G27     110.0          29.0               12.0 +/-    1.10      21.4 +/-    1.10  0.050 / 0.060