PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/08-22:12:30
G10     251.5          29.0               12.5 +/-    1.74      22.4 +/-    1.74  0.220 / 0.680
G13     52.1           28.2                8.1 +/-    0.62      14.7 +/-    0.62  0.240 / 0.720
G15     84.3           57.4               10.0 +/-    0.45      11.6 +/-    0.45  0.040 / 0.050
G16     294.9          15.6                5.9 +/-    8.79      14.4 +/-    8.79  0.040 / 0.060
G20     271.6          51.4               11.3 +/-    1.28      14.0 +/-    1.28  0.050 / 0.170
G21     334.5          60.1                9.7 +/-    0.66      11.1 +/-    0.66  0.070 / 0.160
G26     267.4          15.1               11.3 +/-    1.82      28.1 +/-    1.82  0.100 / 0.110
G29     163.6          48.8               10.6 +/-    0.53      13.6 +/-    0.53  0.090 / 0.130