PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/22-19:27:50
G01     248.7          34.0               10.2 +/-    0.85      16.5 +/-    0.85  0.030 / 0.050
G03     315.3          47.6                9.3 +/-    1.76      12.1 +/-    1.76  0.030 / 0.040
G11     237.2          11.6               11.1 +/-    2.55      30.0 +/-    2.55  0.110 / 0.350
G14     62.1           40.1               10.6 +/-    0.99      15.4 +/-    0.99  0.100 / 0.340
G16     163.3          19.4                6.1 +/-   21.63      13.6 +/-   21.63  0.070 / 0.120
G22     301.1          68.5               12.6 +/-    1.54      13.5 +/-    1.54  0.070 / 0.110
G23     288.5          21.1               11.1 +/-    1.59      23.8 +/-    1.59  0.020 / 0.040
G26     134.6          39.8               13.9 +/-    1.09      20.3 +/-    1.09  0.020 / 0.050
G31     40.4           56.4               10.1 +/-    0.95      11.8 +/-    0.95  0.090 / 0.150
G32     79.4           21.4                9.5 +/-    1.13      20.3 +/-    1.13  0.070 / 0.180