PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/23-15:57:40
G03     300.9          65.0               12.7 +/-    0.44      13.8 +/-    0.44  0.060 / 0.110
G14     76.7           32.2               10.1 +/-    1.01      16.9 +/-    1.01  0.090 / 0.120
G16     153.1          36.1               13.4 +/-    0.81      20.8 +/-    0.81  0.080 / 0.130
G18     137.3          -36.2              38.7 +/-    1.95      60.0 +/-    1.95  0.080 / 0.110
G22     234.9          76.1               12.8 +/-    0.33      13.2 +/-    0.33  0.160 / 0.400
G23     301.8          33.4                8.5 +/-    0.60      14.0 +/-    0.60  0.110 / 0.390
G26     111.8          50.9               13.5 +/-    0.84      16.9 +/-    0.84  0.020 / 0.030
G31     42.5           39.2                9.3 +/-    0.92      13.7 +/-    0.92  0.030 / 0.030
G32     92.6           10.7               12.7 +/-    2.94      35.0 +/-    2.94  0.040 / 0.040