PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-03:28:10
G05     46.4           22.8                3.5 +/-    0.39       7.2 +/-    0.39  0.110 / 0.370
G13     86.0           35.2                7.4 +/-    0.80      11.6 +/-    0.80  0.110 / 0.340
G15     133.8          46.6                9.8 +/-    1.48      12.9 +/-    1.48  0.060 / 0.090
G20     241.1          30.6                8.8 +/-    1.46      15.3 +/-    1.46  0.040 / 0.090
G21     306.5          42.4                7.1 +/-    1.00      10.0 +/-    1.00  0.060 / 0.160
G25     203.4          17.9                9.4 +/-    2.74      21.7 +/-    2.74  0.050 / 0.150
G26     298.3          19.1                7.9 +/-    1.32      17.8 +/-    1.32  0.040 / 0.120
G29     137.9          78.0                8.8 +/-    0.62       9.0 +/-    0.62  0.040 / 0.120