PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/18-20:27:40
G08     281.5          22.4               11.0 +/-    1.28      22.9 +/-    1.28  0.080 / 0.120
G10     29.6           62.8               10.1 +/-    1.15      11.2 +/-    1.15  0.080 / 0.140
G14     242.0          56.4               12.2 +/-    0.88      14.3 +/-    0.88  0.080 / 0.290
G18     77.4           44.2               11.2 +/-    0.66      15.3 +/-    0.66  0.100 / 0.310
G21     149.8          25.6               12.9 +/-    0.81      24.9 +/-    0.81  0.070 / 0.160
G24     48.3           21.1               10.2 +/-    1.66      22.0 +/-    1.66  0.080 / 0.160
G27     242.4          25.1               11.5 +/-    1.93      22.4 +/-    1.93  0.080 / 0.180
G31     183.3          13.6               12.9 +/-    1.66      33.2 +/-    1.66  0.070 / 0.150
G32     272.4          73.2               10.9 +/-    0.43      11.4 +/-    0.43  0.030 / 0.030