PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-23:27:50
G08     300.0          22.5                6.8 +/-    1.38      14.2 +/-    1.38  0.030 / 0.040
G10     351.4          62.2                4.7 +/-    0.47       5.2 +/-    0.47  0.030 / 0.030
G14     223.7          38.6               10.1 +/-    1.51      15.0 +/-    1.51  0.060 / 0.120
G20     53.7           56.3                6.8 +/-    0.66       8.0 +/-    0.66  0.060 / 0.110
G21     142.1          48.1                8.9 +/-    0.58      11.5 +/-    0.58  0.060 / 0.140
G24     61.4           26.9                7.0 +/-    1.26      13.1 +/-    1.26  0.060 / 0.150
G27     264.3          34.9                8.2 +/-    0.88      13.0 +/-    0.88  0.080 / 0.130
G32     233.6          62.4               10.1 +/-    0.80      11.2 +/-    0.80  0.050 / 0.100