PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-20:13:00
G01     320.7          13.0                7.0 +/-    1.56      18.3 +/-    1.56  0.310 / 0.460
G08     260.7          16.2                8.4 +/-    2.73      20.3 +/-    2.73  0.180 / 0.330
G10     70.4           55.7                8.3 +/-    0.72       9.8 +/-    0.72  0.110 / 0.230
G11     307.2          20.9                8.5 +/-    4.02      18.4 +/-    4.02  0.100 / 0.210
G14     279.5          69.1                9.2 +/-    0.58       9.8 +/-    0.58  0.040 / 0.050
G20     100.1          33.2                9.9 +/-    0.92      16.3 +/-    0.92  0.040 / 0.050
G27     230.1          13.2                9.8 +/-    2.09      25.5 +/-    2.09  0.120 / 0.340
G31     179.0          33.7               10.2 +/-    2.03      16.6 +/-    2.03  0.140 / 0.370
G32     353.3          71.6                9.2 +/-    0.44       9.7 +/-    0.44  0.070 / 0.090