PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/16-20:57:40
G10     262.3          35.5                9.2 +/-    1.56      14.4 +/-    1.56  0.100 / 0.260
G13     44.1           21.4                7.4 +/-    1.47      15.8 +/-    1.47  0.160 / 0.280
G15     70.5           56.5                8.6 +/-    0.50      10.0 +/-    0.50  0.050 / 0.050
G16     282.6          13.6                8.7 +/-    1.42      22.5 +/-    1.42  0.050 / 0.040
G20     289.2          58.2                8.6 +/-    1.14       9.9 +/-    1.14  0.090 / 0.280
G21     353.1          68.9                8.6 +/-    1.08       9.1 +/-    1.08  0.080 / 0.270
G24     121.7          11.9               11.4 +/-    2.02      30.4 +/-    2.02  0.160 / 0.390
G27     320.8          14.4                7.1 +/-    3.42      17.9 +/-    3.42  0.150 / 0.450
G29     167.5          36.6                9.0 +/-    1.03      13.9 +/-    1.03  0.100 / 0.370