PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/26-17:43:00
G10     249.4          26.1               11.3 +/-    2.43      21.6 +/-    2.43  0.040 / 0.050
G13     54.7           30.3                9.9 +/-    1.32      17.3 +/-    1.32  0.040 / 0.040
G15     95.2           59.3               12.3 +/-    0.32      14.0 +/-    0.32  0.170 / 0.790
G16     297.2          15.5                9.9 +/-    2.53      24.2 +/-    2.53  0.150 / 0.630
G20     268.0          49.9               10.8 +/-    1.13      13.6 +/-    1.13  0.060 / 0.160
G21     333.9          60.0               10.7 +/-    0.83      12.2 +/-    0.83  0.060 / 0.150
G26     270.1          16.0               12.1 +/-    1.27      29.5 +/-    1.27  0.040 / 0.030
G29     163.8          51.4               10.8 +/-    1.21      13.4 +/-    1.21  0.040 / 0.040