PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/04-19:27:50
G01     318.0          20.7                9.3 +/-    3.78      20.0 +/-    3.78  0.030 / 0.040
G08     252.5          11.5                9.7 +/-    2.64      26.1 +/-    2.64  0.030 / 0.040
G10     85.0           50.7               10.4 +/-    0.62      13.1 +/-    0.62  0.110 / 0.230
G11     298.9          25.2               10.1 +/-    1.82      19.6 +/-    1.82  0.100 / 0.210
G14     308.9          71.4                8.8 +/-    1.12       9.2 +/-    1.12  0.140 / 0.310
G20     108.2          26.6               12.0 +/-    1.14      22.6 +/-    1.14  0.130 / 0.290
G22     302.4          12.2                9.8 +/-    3.88      26.2 +/-    3.88  0.070 / 0.040
G31     178.0          43.0               11.7 +/-    2.09      16.3 +/-    2.09  0.070 / 0.050
G32     12.2           65.6                7.8 +/-    0.64       8.4 +/-    0.64  0.130 / 0.620