PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/24-21:57:30
G10     248.2          24.8               12.3 +/-    1.86      24.2 +/-    1.86  0.040 / 0.050
G13     56.1           31.2                8.8 +/-    1.82      15.0 +/-    1.82  0.040 / 0.050
G15     99.3           59.3                8.8 +/-    1.15      10.0 +/-    1.15  0.120 / 0.370
G16     296.8          16.2                7.1 +/-    1.88      17.1 +/-    1.88  0.130 / 0.380
G20     251.2          14.8                4.7 +/-    4.10      11.7 +/-    4.10  0.060 / 0.120
G21     328.9          57.4                8.5 +/-    0.37       9.9 +/-    0.37  0.050 / 0.130
G26     268.9          16.8               11.2 +/-    1.21      26.6 +/-    1.21  0.030 / 0.030
G29     164.4          54.5                9.3 +/-    0.71      11.2 +/-    0.71  0.030 / 0.040