PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/29-18:58:00
G01     249.4          34.4                9.9 +/-    1.42      15.9 +/-    1.42  0.040 / 0.080
G03     315.4          47.4                6.8 +/-    1.72       8.9 +/-    1.72  0.040 / 0.130
G11     237.9          11.9                9.9 +/-    4.69      26.5 +/-    4.69  0.040 / 0.050
G14     61.4           40.6                9.0 +/-    0.58      13.0 +/-    0.58  0.030 / 0.040
G16     163.4          19.1               -1.2 +/-   22.96      -2.7 +/-   22.96  0.100 / 0.290
G22     301.8          68.2                9.2 +/-    0.62       9.8 +/-    0.62  0.070 / 0.270
G23     288.2          20.9                8.7 +/-    1.77      18.6 +/-    1.77  0.080 / 0.120
G26     134.9          39.4               12.1 +/-    1.22      17.8 +/-    1.22  0.080 / 0.120
G31     40.5           56.8                7.5 +/-    0.97       8.8 +/-    0.97  0.030 / 0.040
G32     78.9           21.6                8.3 +/-    0.99      17.5 +/-    0.99  0.030 / 0.040