PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/16-19:42:40
G01     317.5          22.9                7.3 +/-    2.72      14.9 +/-    2.72  0.140 / 0.400
G08     254.8          11.9                6.9 +/-   15.69      18.5 +/-   15.69  0.140 / 0.400
G10     85.5           49.4                7.8 +/-    0.92       9.9 +/-    0.92  0.040 / 0.040
G11     303.0          21.8                7.7 +/-    2.10      16.2 +/-    2.10  0.040 / 0.050
G14     292.7          68.8                8.9 +/-    0.69       9.5 +/-    0.69  0.030 / 0.050
G20     109.1          24.2                8.5 +/-    0.74      16.8 +/-    0.74  0.030 / 0.050
G22     302.4          11.2                4.1 +/-   15.58      11.3 +/-   15.58  0.250 / 0.490
G31     174.7          45.4               10.4 +/-    0.94      13.9 +/-    0.94  0.190 / 0.560
G32     16.2           64.4                7.8 +/-    0.46       8.6 +/-    0.46  0.050 / 0.060