PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/27-20:12:50
G10     262.4          35.6               10.7 +/-    2.02      16.8 +/-    2.02  0.100 / 0.250
G13     44.1           21.4                9.7 +/-    1.16      20.7 +/-    1.16  0.160 / 0.280
G15     69.7           56.0                9.5 +/-    0.56      11.2 +/-    0.56  0.150 / 0.340
G16     282.8          13.6                9.4 +/-    1.95      24.2 +/-    1.95  0.140 / 0.390
G20     289.3          58.2               10.9 +/-    1.35      12.5 +/-    1.35  0.040 / 0.040
G21     353.8          69.0               11.2 +/-    0.59      11.9 +/-    0.59  0.040 / 0.090
G24     121.5          11.9               12.5 +/-    2.54      33.5 +/-    2.54  0.070 / 0.260
G27     320.9          14.3                8.4 +/-    4.24      21.2 +/-    4.24  0.070 / 0.280
G29     167.3          36.4                9.8 +/-    0.92      15.1 +/-    0.92  0.090 / 0.330