PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-19:12:10
G05     49.5           17.0                9.6 +/-    0.74      22.8 +/-    0.74  0.110 / 0.370
G10     238.3          15.2               15.3 +/-    1.86      38.0 +/-    1.86  0.110 / 0.350
G13     71.1           35.7               12.4 +/-    0.62      19.4 +/-    0.62  0.040 / 0.070
G15     127.4          53.9               14.1 +/-    0.73      17.0 +/-    0.73  0.040 / 0.070
G16     310.7          13.8                9.1 +/-    1.39      23.3 +/-    1.39  0.090 / 0.130
G20     251.3          39.5               14.5 +/-    2.53      21.3 +/-    2.53  0.060 / 0.230
G21     316.8          49.4               11.6 +/-    0.98      14.7 +/-    0.98  0.050 / 0.130
G26     283.8          20.0               10.6 +/-    1.13      23.4 +/-    1.13  0.050 / 0.190
G29     157.8          69.0               13.6 +/-    0.98      14.4 +/-    0.98  0.030 / 0.040