PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-19:12:30
G05     51.2           12.3                7.2 +/-    0.63      19.1 +/-    0.63  0.070 / 0.090
G10     241.2          19.9               11.1 +/-    2.12      24.6 +/-    2.12  0.040 / 0.080
G13     65.1           33.8                8.8 +/-    0.93      14.3 +/-    0.93  0.050 / 0.130
G15     111.6          56.5               11.0 +/-    0.46      12.9 +/-    0.46  0.060 / 0.140
G16     306.7          14.9                6.2 +/-    2.97      15.4 +/-    2.97  0.110 / 0.560
G20     256.6          43.7                9.3 +/-    1.18      12.7 +/-    1.18  0.130 / 0.560
G21     320.5          51.3               10.4 +/-    1.29      12.9 +/-    1.29  0.030 / 0.050
G26     279.6          19.0                8.3 +/-    1.72      18.6 +/-    1.72  0.030 / 0.050
G29     158.8          64.2               10.8 +/-    0.77      11.8 +/-    0.77  0.110 / 0.190