PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/14-20:27:50
G10     246.8          23.7               12.3 +/-    1.54      24.8 +/-    1.54  0.040 / 0.050
G13     57.8           32.0                9.7 +/-    1.50      16.4 +/-    1.50  0.040 / 0.050
G15     106.7          59.6               12.3 +/-    0.94      14.0 +/-    0.94  0.180 / 0.360
G16     299.5          15.7                8.6 +/-    1.63      20.9 +/-    1.63  0.150 / 0.380
G20     263.9          47.8               11.7 +/-    3.24      15.1 +/-    3.24  0.080 / 0.110
G21     328.5          57.0               12.1 +/-    0.49      14.1 +/-    0.49  0.070 / 0.150
G26     271.9          17.2               11.3 +/-    1.89      26.6 +/-    1.89  0.070 / 0.110
G29     163.5          55.8               13.7 +/-    0.53      16.1 +/-    0.53  0.080 / 0.130