PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/27-20:13:00
G10     262.4          35.6               11.4 +/-    0.63      17.9 +/-    0.63  0.050 / 0.040
G13     44.1           21.4                9.9 +/-    1.91      21.0 +/-    1.91  0.050 / 0.040
G15     69.7           56.0                9.2 +/-    0.56      10.9 +/-    0.56  0.160 / 0.220
G16     282.8          13.6                8.0 +/-    1.58      20.6 +/-    1.58  0.130 / 0.190
G20     289.3          58.2                9.8 +/-    1.18      11.3 +/-    1.18  0.130 / 0.380
G21     353.8          69.0               10.2 +/-    0.46      10.8 +/-    0.46  0.140 / 0.460
G24     121.5          11.9               13.0 +/-    2.32      34.7 +/-    2.32  0.310 / 0.340
G27     320.9          14.3                8.4 +/-    3.29      21.2 +/-    3.29  0.170 / 0.340
G29     167.3          36.4               10.0 +/-    0.77      15.5 +/-    0.77  0.090 / 0.210