PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/08-10:27:50
G07     23.1           68.3                5.5 +/-    0.99       5.9 +/-    0.99  0.070 / 0.120
G08     68.7           51.5                5.0 +/-    1.17       6.2 +/-    1.17  0.070 / 0.130
G09     179.9          51.1                7.0 +/-    0.67       8.7 +/-    0.67  0.030 / 0.040
G11     131.3          27.9                3.6 +/-    1.80       6.6 +/-    1.80  0.030 / 0.040
G18     114.2          9.8                -7.4 +/-   17.26     -20.8 +/-   17.26  0.150 / 0.150
G23     158.8          17.4                4.2 +/-    0.83       9.9 +/-    0.83  0.180 / 0.310
G27     41.1           18.3                4.6 +/-    1.53      10.6 +/-    1.53  0.040 / 0.050
G28     253.7          39.2                5.9 +/-    1.38       8.7 +/-    1.38  0.040 / 0.050
G30     319.5          50.4                4.2 +/-    0.43       5.3 +/-    0.43  0.050 / 0.040