PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/16-19:27:50
G01     302.5          36.4                7.9 +/-    1.83      12.2 +/-    1.83  0.060 / 0.110
G10     111.1          35.6                9.5 +/-    0.78      14.9 +/-    0.78  0.060 / 0.120
G11     274.4          28.0                7.4 +/-    0.98      13.6 +/-    0.98  0.050 / 0.080
G14     8.8            64.2                5.7 +/-    0.58       6.3 +/-    0.58  0.050 / 0.070
G18     263.7          51.1               10.2 +/-    1.18      12.6 +/-    1.18  0.090 / 0.150
G20     123.5          10.2                9.3 +/-    1.96      25.9 +/-    1.96  0.070 / 0.180
G22     311.5          29.6                7.4 +/-    1.08      13.1 +/-    1.08  0.040 / 0.070
G25     71.0           16.0                6.1 +/-    1.38      14.9 +/-    1.38  0.060 / 0.070
G31     169.4          67.5                9.4 +/-    0.86      10.0 +/-    0.86  0.080 / 0.130
G32     40.4           49.7                6.8 +/-    0.58       8.6 +/-    0.58  0.080 / 0.140