PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/24-21:12:30
G10     287.5          48.4                8.9 +/-    1.14      11.4 +/-    1.14  0.070 / 0.110
G15     49.1           39.3                7.4 +/-    0.52      10.9 +/-    0.52  0.070 / 0.120
G20     335.0          65.2                8.6 +/-    0.82       9.4 +/-    0.82  0.070 / 0.160
G21     68.5           76.9               11.3 +/-    0.63      11.6 +/-    0.63  0.080 / 0.180
G24     102.1          23.4               10.3 +/-    1.13      20.9 +/-    1.13  0.050 / 0.050
G27     308.3          29.8                8.0 +/-    1.83      14.1 +/-    1.83  0.040 / 0.040
G29     168.6          14.5               13.1 +/-    1.83      32.8 +/-    1.83  0.060 / 0.050
G32     207.7          26.0               10.1 +/-    2.06      19.4 +/-    2.06  0.050 / 0.070