PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/27-21:12:50
G08     274.0          21.5                9.9 +/-    0.88      21.1 +/-    0.88  0.040 / 0.070
G10     44.6           61.0                8.9 +/-    0.72      10.0 +/-    0.72  0.040 / 0.060
G14     249.7          60.4                9.3 +/-    0.83      10.5 +/-    0.83  0.250 / 0.320
G18     315.5          26.0                7.4 +/-    1.21      14.2 +/-    1.21  0.130 / 0.210
G20     86.2           42.3                9.4 +/-    1.06      13.2 +/-    1.06  0.150 / 0.150
G21     152.7          22.8               12.5 +/-    0.92      25.8 +/-    0.92  0.090 / 0.160
G24     42.1           13.3                7.4 +/-    3.73      19.3 +/-    3.73  0.060 / 0.120
G27     240.3          22.1               11.0 +/-    1.22      23.0 +/-    1.22  0.180 / 0.140
G31     180.8          20.7               11.9 +/-    1.50      25.8 +/-    1.50  0.140 / 0.210
G32     303.7          76.4                8.8 +/-    0.67       9.1 +/-    0.67  0.150 / 0.300