PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-09:28:10
G03     226.2          64.4                6.9 +/-    1.19       7.5 +/-    1.19  0.050 / 0.070
G07     251.7          10.7               -4.0 +/-   18.65     -11.0 +/-   18.65  0.040 / 0.090
G09     307.3          24.2                4.0 +/-    1.18       7.9 +/-    1.18  0.200 / 0.510
G14     103.6          12.7                4.0 +/-    1.15      10.5 +/-    1.15  0.240 / 0.510
G16     108.3          62.4                7.1 +/-    0.80       7.9 +/-    0.80  0.040 / 0.050
G22     190.7          48.5                5.3 +/-    1.13       6.8 +/-    1.13  0.040 / 0.050
G23     325.3          55.1                5.0 +/-    0.81       6.0 +/-    0.81  0.060 / 0.380
G26     59.1           46.4                4.0 +/-    0.72       5.3 +/-    0.72  0.100 / 0.370
G31     56.1           13.2                1.8 +/-    1.46       4.6 +/-    1.46  0.040 / 0.060