PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/31-05:12:50
G01     252.4          35.9                5.7 +/-    1.90       8.8 +/-    1.90  0.050 / 0.090
G03     316.1          40.1                3.0 +/-    1.31       4.4 +/-    1.31  0.070 / 0.090
G11     236.2          13.6                4.7 +/-    1.53      12.2 +/-    1.53  0.040 / 0.040
G14     60.3           40.2                1.9 +/-    1.08       2.7 +/-    1.08  0.040 / 0.030
G16     165.3          16.0                0.4 +/-    9.56       1.0 +/-    9.56  0.060 / 0.080
G22     306.6          64.8                4.1 +/-    0.53       4.5 +/-    0.53  0.100 / 0.090
G23     284.9          17.1                6.9 +/-    1.59      16.3 +/-    1.59  0.060 / 0.080
G26     140.4          35.8                5.6 +/-    1.04       8.7 +/-    1.04  0.050 / 0.090
G31     40.7           61.5                2.8 +/-    0.46       3.2 +/-    0.46  0.180 / 0.490
G32     75.3           25.5                4.5 +/-    2.13       8.7 +/-    2.13  0.170 / 0.350