PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-06:42:40
G08     307.5          20.0                6.7 +/-    1.69      14.7 +/-    1.69  0.040 / 0.030
G10     340.2          61.2                5.6 +/-    0.69       6.2 +/-    0.69  0.040 / 0.030
G14     219.2          34.0                9.0 +/-    2.16      14.5 +/-    2.16  0.050 / 0.060
G20     43.2           59.1                7.5 +/-    0.84       8.6 +/-    0.84  0.050 / 0.050
G21     137.1          53.3                9.4 +/-    1.07      11.4 +/-    1.07  0.060 / 0.090
G24     70.0           29.3                7.5 +/-    0.45      13.3 +/-    0.45  0.060 / 0.090
G27     272.8          36.9                8.6 +/-    1.40      13.2 +/-    1.40  0.080 / 0.190
G32     225.3          51.0               10.7 +/-    0.81      13.4 +/-    0.81  0.070 / 0.140