PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-13:27:40
G01     55.2           28.3                8.3 +/-    0.55      15.1 +/-    0.55  0.050 / 0.050
G06     179.5          19.0                9.0 +/-    1.35      20.2 +/-    1.35  0.040 / 0.060
G07     143.9          15.5                8.9 +/-    2.85      21.8 +/-    2.85  0.120 / 0.140
G11     45.8           17.7                7.9 +/-    1.08      18.5 +/-    1.08  0.110 / 0.170
G13     259.5          33.1                9.6 +/-    1.31      15.7 +/-    1.31  0.090 / 0.310
G15     291.1          16.0                4.0 +/-    2.35       9.7 +/-    2.35  0.080 / 0.320
G17     295.0          80.0                9.9 +/-    0.58      10.1 +/-    0.58  0.120 / 0.260
G19     239.3          57.1                9.1 +/-    1.47      10.6 +/-    1.47  0.110 / 0.310
G28     44.0           54.8                8.7 +/-    1.16      10.4 +/-    1.16  0.030 / 0.030
G30     146.6          49.1               11.2 +/-    0.76      14.3 +/-    0.76  0.030 / 0.030