PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-06:13:00
G03     245.8          69.6                3.8 +/-    0.70       4.0 +/-    0.70  0.040 / 0.050
G09     301.7          16.2                2.5 +/-    2.36       6.0 +/-    2.36  0.030 / 0.050
G14     96.9           17.1                3.2 +/-    0.96       7.6 +/-    0.96  0.120 / 0.260
G16     129.0          56.6                5.7 +/-    0.65       6.7 +/-    0.65  0.100 / 0.250
G22     199.3          58.3                4.1 +/-    0.58       4.7 +/-    0.58  0.130 / 0.280
G23     320.1          50.3                3.5 +/-    1.35       4.4 +/-    1.35  0.200 / 0.290
G26     72.9           52.3                3.5 +/-    0.50       4.3 +/-    0.50  0.060 / 0.060
G31     51.7           19.8                2.4 +/-    2.01       5.4 +/-    2.01  0.050 / 0.040