PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/12-23:58:10
G01     319.3          18.5               -0.0 +/-   27.87      -0.1 +/-   27.87  0.100 / 0.160
G08     261.7          14.2                7.7 +/-    1.06      19.5 +/-    1.06  0.120 / 0.170
G10     78.8           52.2                7.0 +/-    1.24       8.6 +/-    1.24  0.040 / 0.040
G11     305.6          21.1                6.6 +/-    3.01      14.1 +/-    3.01  0.040 / 0.050
G14     285.9          69.1                6.6 +/-    0.51       7.0 +/-    0.51  0.070 / 0.090
G18     305.9          40.0                6.9 +/-    2.01      10.0 +/-    2.01  0.070 / 0.110
G20     104.8          29.1                9.3 +/-    1.21      16.5 +/-    1.21  0.120 / 0.350
G31     174.8          41.4                8.4 +/-    0.99      11.9 +/-    0.99  0.110 / 0.330
G32     5.4            68.5                6.1 +/-    0.69       6.5 +/-    0.69  0.030 / 0.040