PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/19-08:12:40
G02     0.8            75.9                3.4 +/-    0.32       3.5 +/-    0.32  0.050 / 0.060
G05     162.6          36.4                6.5 +/-    0.80      10.0 +/-    0.80  0.050 / 0.060
G06     41.2           41.8                2.5 +/-    0.76       3.6 +/-    0.76  0.030 / 0.020
G12     308.0          71.7                3.5 +/-    0.75       3.7 +/-    0.75  0.030 / 0.030
G17     88.3           10.1                7.0 +/-    4.35      19.6 +/-    4.35  0.180 / 0.260
G19     77.9           25.1                5.3 +/-    1.52      10.4 +/-    1.52  0.410 / 0.270
G24     227.5          21.3                4.0 +/-    1.40       8.4 +/-    1.40  0.180 / 0.110
G25     316.9          30.8                3.6 +/-    0.66       6.1 +/-    0.66  0.120 / 0.170
G29     289.0          12.2                3.8 +/-    2.82      10.1 +/-    2.82  0.130 / 0.090