PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/17-06:12:40
G03     219.9          62.5                5.4 +/-    1.08       6.0 +/-    1.08  0.050 / 0.060
G07     254.4          15.3                5.2 +/-    2.20      12.7 +/-    2.20  0.050 / 0.050
G09     308.0          24.6                3.6 +/-    1.79       7.2 +/-    1.79  0.210 / 0.320
G14     105.5          10.1                4.1 +/-    1.64      11.5 +/-    1.64  0.170 / 0.290
G16     105.6          62.7                6.3 +/-    0.69       7.0 +/-    0.69  0.070 / 0.260
G22     192.4          47.0                5.4 +/-    0.76       7.1 +/-    0.76  0.070 / 0.320
G23     329.6          58.9                4.1 +/-    0.41       4.7 +/-    0.41  0.040 / 0.050
G26     58.0           46.1                5.0 +/-    1.15       6.6 +/-    1.15  0.030 / 0.040
G31     57.4           11.7               -1.9 +/-    2.14      -5.2 +/-    2.14  0.080 / 0.130