PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-19:28:00
G10     246.4          24.8               11.2 +/-    0.80      22.1 +/-    0.80  0.040 / 0.050
G13     57.7           31.2                8.2 +/-    1.54      13.9 +/-    1.54  0.040 / 0.050
G15     97.7           58.1                9.8 +/-    1.10      11.3 +/-    1.10  0.050 / 0.120
G16     300.3          15.8                6.2 +/-    2.26      15.3 +/-    2.26  0.080 / 0.130
G20     264.4          48.4                9.8 +/-    3.33      12.6 +/-    3.33  0.030 / 0.040
G21     327.6          55.9                9.0 +/-    0.71      10.7 +/-    0.71  0.040 / 0.030
G26     272.9          17.3                8.8 +/-    2.81      20.8 +/-    2.81  0.130 / 0.640
G29     161.9          56.5               11.4 +/-    0.46      13.4 +/-    0.46  0.160 / 0.560