PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/15-21:27:30
G03     235.3          68.0                9.3 +/-    0.68      10.0 +/-    0.68  0.050 / 0.050
G09     303.1          17.3                8.5 +/-    2.41      20.0 +/-    2.41  0.040 / 0.050
G14     99.7           14.9               10.1 +/-    1.70      25.1 +/-    1.70  0.110 / 0.220
G16     131.2          58.7               12.9 +/-    0.62      14.9 +/-    0.62  0.100 / 0.230
G22     194.9          55.6               12.2 +/-    1.81      14.4 +/-    1.81  0.030 / 0.050
G23     319.3          49.1                8.7 +/-    0.62      11.1 +/-    0.62  0.030 / 0.040
G26     70.0           52.2                8.0 +/-    0.59       9.8 +/-    0.59  0.090 / 0.320
G31     52.0           20.2                6.6 +/-    1.39      14.5 +/-    1.39  0.100 / 0.340