PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/22-05:28:20
G03     245.3          69.4                6.1 +/-    0.60       6.4 +/-    0.60  0.130 / 0.430
G09     302.1          16.8                3.7 +/-    1.90       8.8 +/-    1.90  0.140 / 0.460
G14     97.2           17.1                4.0 +/-    1.82       9.5 +/-    1.82  0.040 / 0.070
G16     127.8          57.0                6.1 +/-    0.76       7.2 +/-    0.76  0.040 / 0.060
G22     199.3          58.0                6.9 +/-    0.93       8.0 +/-    0.93  0.050 / 0.060
G23     320.1          50.2                5.1 +/-    0.66       6.4 +/-    0.66  0.050 / 0.060
G26     72.0           52.0                4.9 +/-    0.47       6.1 +/-    0.47  0.040 / 0.060
G31     51.9           19.4                1.7 +/-    1.70       3.9 +/-    1.70  0.040 / 0.060