PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/01-01:43:10
G01     319.9          15.6               -0.9 +/-   28.92      -2.2 +/-   28.92  0.160 / 0.340
G08     257.8          14.6                9.6 +/-    1.88      24.2 +/-    1.88  0.120 / 0.250
G10     75.6           54.4                7.2 +/-    0.39       8.6 +/-    0.39  0.160 / 0.340
G11     304.5          22.6                6.3 +/-    1.96      13.0 +/-    1.96  0.150 / 0.270
G14     287.0          69.6                7.7 +/-    0.60       8.2 +/-    0.60  0.040 / 0.050
G18     306.8          38.6                6.2 +/-    1.44       9.2 +/-    1.44  0.040 / 0.050
G20     63.7           68.2               11.6 +/-    0.48      12.4 +/-    0.48  0.170 / 0.330
G27     226.2          10.6               11.0 +/-    1.71      30.4 +/-    1.71  0.160 / 0.280
G31     174.7          40.8               11.2 +/-    1.41      16.1 +/-    1.41  0.070 / 0.240
G32     6.6            68.3                7.1 +/-    0.44       7.5 +/-    0.44  0.080 / 0.200