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                7.9 +/-    2.19      20.6 +/-    2.19  0.040 / 0.030
G08     260.7          16.2                8.8 +/-    2.18      21.2 +/-    2.18  0.030 / 0.050
G10     70.4           55.7                8.5 +/-    0.49      10.0 +/-    0.49  0.220 / 0.390
G11     307.2          20.9                8.0 +/-    3.06      17.2 +/-    3.06  0.250 / 0.380
G14     279.5          69.1                8.9 +/-    0.35       9.4 +/-    0.35  0.110 / 0.250
G20     100.1          33.2                9.6 +/-    0.90      15.7 +/-    0.90  0.100 / 0.300
G27     230.1          13.2                7.3 +/-    1.93      18.9 +/-    1.93  0.030 / 0.020
G31     179.0          33.7                9.6 +/-    0.63      15.7 +/-    0.63  0.030 / 0.020
G32     353.3          71.6                7.9 +/-    0.35       8.3 +/-    0.35  0.110 / 0.380