PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/27-22:43:10
G10     274.0          42.2                8.3 +/-    1.17      11.7 +/-    1.17  0.090 / 0.140
G13     39.4           13.3                7.0 +/-    1.49      18.2 +/-    1.49  0.080 / 0.130
G15     55.7           47.6                9.1 +/-    0.56      11.8 +/-    0.56  0.050 / 0.050
G20     271.9          30.4                4.9 +/-    1.08       8.5 +/-    1.08  0.050 / 0.030
G21     16.4           75.0                9.9 +/-    1.32      10.2 +/-    1.32  0.090 / 0.250
G24     113.3          17.9               10.3 +/-    1.41      23.8 +/-    1.41  0.080 / 0.200
G27     315.6          23.2                7.2 +/-    0.98      14.6 +/-    0.98  0.110 / 0.290
G29     168.9          26.0               11.0 +/-    1.00      21.0 +/-    1.00  0.110 / 0.340
G32     204.8          16.4               14.9 +/-    2.13      35.8 +/-    2.13  0.030 / 0.040