PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/19-21:43:00
G05     49.0           16.7                6.0 +/-    1.21      14.3 +/-    1.21  0.060 / 0.150
G10     236.6          13.1               13.5 +/-    3.85      35.0 +/-    3.85  0.080 / 0.150
G13     74.5           36.2                8.4 +/-    1.02      13.0 +/-    1.02  0.040 / 0.090
G15     129.0          52.4                9.6 +/-    0.95      11.8 +/-    0.95  0.050 / 0.070
G16     312.0          13.7                7.0 +/-    1.42      18.0 +/-    1.42  0.100 / 0.370
G20     241.3          6.2                 6.5 +/-    1.41      19.4 +/-    1.41  0.110 / 0.330
G21     313.0          46.6                7.4 +/-    1.41       9.8 +/-    1.41  0.060 / 0.110
G26     285.0          20.9                8.4 +/-    3.02      18.2 +/-    3.02  0.060 / 0.150
G29     156.9          72.9               11.3 +/-    1.40      11.7 +/-    1.40  0.040 / 0.060