PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/15-17:57:30
G10     261.5          36.4               10.3 +/-    1.37      15.9 +/-    1.37  0.110 / 0.240
G13     44.4           21.2                8.2 +/-    1.99      17.4 +/-    1.99  0.110 / 0.230
G15     64.8           51.7                8.4 +/-    0.74      10.4 +/-    0.74  0.060 / 0.050
G16     283.6          14.3                7.7 +/-    1.37      19.6 +/-    1.37  0.050 / 0.050
G20     290.3          58.9                8.4 +/-    1.32       9.6 +/-    1.32  0.140 / 0.290
G21     350.7          67.7                9.3 +/-    0.71      10.0 +/-    0.71  0.150 / 0.330
G24     126.8          10.7                2.5 +/-   33.82       6.8 +/-   33.82  0.360 / 0.400
G27     320.9          14.2                6.7 +/-    1.52      17.0 +/-    1.52  0.360 / 0.380
G29     166.6          38.3               10.7 +/-    1.08      16.0 +/-    1.08  0.080 / 0.240