PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/26-20:13:00
G05     49.8           17.0               11.7 +/-    0.88      27.6 +/-    0.88  0.050 / 0.070
G10     239.0          14.6               18.0 +/-    1.17      45.2 +/-    1.17  0.060 / 0.070
G13     72.2           37.0               13.7 +/-    0.82      21.0 +/-    0.82  0.120 / 0.260
G15     117.3          54.5               16.1 +/-    0.65      19.3 +/-    0.65  0.110 / 0.220
G16     313.8          11.5               13.2 +/-    2.46      35.5 +/-    2.46  0.200 / 0.630
G18     249.8          45.6               16.0 +/-    1.36      21.4 +/-    1.36  0.280 / 0.530
G20     31.4           62.4               15.4 +/-    0.66      17.2 +/-    0.66  0.060 / 0.110
G21     318.3          51.1               16.0 +/-    1.02      19.9 +/-    1.02  0.060 / 0.100
G26     287.2          18.8               14.3 +/-    2.11      32.5 +/-    2.11  0.030 / 0.040
G29     156.1          62.6               16.9 +/-    1.31      18.8 +/-    1.31  0.030 / 0.050