PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/21-01:58:10
G10     262.3          36.5               12.3 +/-    0.65      18.9 +/-    0.65  0.050 / 0.050
G13     44.0           20.9                8.0 +/-    1.55      17.1 +/-    1.55  0.050 / 0.050
G15     63.8           51.2               10.7 +/-    0.24      13.3 +/-    0.24  0.090 / 0.070
G16     285.1          13.6                9.8 +/-    2.18      25.2 +/-    2.18  0.090 / 0.090
G20     289.1          57.9               12.7 +/-    1.10      14.7 +/-    1.10  0.080 / 0.040
G21     352.9          68.5               10.3 +/-    0.62      11.0 +/-    0.62  0.070 / 0.050
G24     124.6          11.4               10.9 +/-   15.68      29.5 +/-   15.68  0.110 / 0.300
G26     258.0          10.1               12.9 +/-    2.81      35.8 +/-    2.81  0.100 / 0.270
G27     320.9          14.2                7.9 +/-    3.11      19.9 +/-    3.11  0.070 / 0.250
G29     165.7          34.8               12.2 +/-    1.37      19.4 +/-    1.37  0.070 / 0.290