PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/31-04:57:40
G03     238.3          68.2                8.0 +/-    0.56       8.5 +/-    0.56  0.070 / 0.100
G09     303.7          19.0                7.6 +/-    0.73      17.1 +/-    0.73  0.070 / 0.160
G14     99.2           15.6                7.1 +/-    1.92      17.3 +/-    1.92  0.030 / 0.040
G16     122.7          58.9                9.1 +/-    0.37      10.4 +/-    0.37  0.030 / 0.040
G22     197.5          55.4                7.7 +/-    1.77       9.1 +/-    1.77  0.030 / 0.050
G23     321.9          51.9                9.1 +/-    1.19      11.3 +/-    1.19  0.040 / 0.050
G26     67.9           50.8                8.7 +/-    0.37      10.8 +/-    0.37  0.040 / 0.060
G31     53.2           17.5                5.2 +/-    0.98      12.2 +/-    0.98  0.040 / 0.060