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               13.7 +/-    1.53      21.2 +/-    1.53  0.110 / 0.100
G13     44.0           20.9                8.1 +/-    1.92      17.4 +/-    1.92  0.110 / 0.070
G15     63.8           51.2               10.8 +/-    1.15      13.4 +/-    1.15  0.090 / 0.050
G16     285.1          13.6                8.9 +/-    1.52      22.9 +/-    1.52  0.080 / 0.030
G20     289.1          57.9               11.8 +/-    1.61      13.7 +/-    1.61  0.050 / 0.040
G21     352.9          68.5               10.5 +/-    0.67      11.2 +/-    0.67  0.050 / 0.050
G24     124.6          11.4               10.2 +/-    3.11      27.5 +/-    3.11  0.100 / 0.390
G27     320.9          14.2                6.3 +/-    2.47      16.0 +/-    2.47  0.110 / 0.450
G29     165.7          34.8               12.2 +/-    1.39      19.5 +/-    1.39  0.250 / 0.210