PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/04-21:42:50
G05     49.5           18.2               16.1 +/-    1.20      37.0 +/-    1.20  0.040 / 0.070
G10     239.0          14.6               31.4 +/-    1.93      78.9 +/-    1.93  0.050 / 0.070
G13     72.3           37.1               21.9 +/-    0.68      33.4 +/-    0.68  0.120 / 0.290
G15     118.7          54.5               24.6 +/-    1.11      29.5 +/-    1.11  0.110 / 0.240
G16     313.0          12.1               17.3 +/-    2.50      46.2 +/-    2.50  0.160 / 0.540
G18     249.6          45.1               25.3 +/-    1.51      34.0 +/-    1.51  0.140 / 0.480
G20     32.1           61.8               20.8 +/-    0.46      23.3 +/-    0.46  0.030 / 0.050
G21     317.5          50.5               22.4 +/-    1.12      28.1 +/-    1.12  0.040 / 0.050
G26     286.2          19.1               21.4 +/-    1.30      48.1 +/-    1.30  0.060 / 0.160
G29     156.8          63.8               25.1 +/-    0.63      27.6 +/-    0.63  0.050 / 0.150