PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/29-16:28:10
G01     319.1          17.5                6.6 +/-    2.28      15.3 +/-    2.28  0.110 / 0.150
G08     259.4          13.3                7.4 +/-    3.35      19.1 +/-    3.35  0.040 / 0.040
G10     78.8           53.9                7.5 +/-    0.93       9.1 +/-    0.93  0.030 / 0.040
G11     305.1          21.5                6.4 +/-    1.53      13.5 +/-    1.53  0.160 / 0.240
G14     293.4          69.9                6.7 +/-    0.80       7.1 +/-    0.80  0.140 / 0.260
G22     300.6          10.9               -0.0 +/-    4.61      -0.1 +/-    4.61  0.060 / 0.060
G31     176.2          41.7               10.6 +/-    1.10      15.0 +/-    1.10  0.050 / 0.060
G32     7.4            67.5                6.2 +/-    0.41       6.6 +/-    0.41  0.040 / 0.040