PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-01:27:40
G10     286.8          47.3                8.3 +/-    1.41      10.9 +/-    1.41  0.080 / 0.170
G15     48.4           36.5                8.5 +/-    0.94      13.1 +/-    0.94  0.070 / 0.190
G18     338.3          66.7                9.6 +/-    0.41      10.3 +/-    0.41  0.110 / 0.230
G20     67.0           21.4                7.3 +/-    1.96      15.5 +/-    1.96  0.120 / 0.280
G21     68.9           76.9               10.8 +/-    0.64      11.1 +/-    0.64  0.050 / 0.050
G24     106.2          23.3               10.6 +/-    1.06      21.6 +/-    1.06  0.050 / 0.050
G27     305.8          31.8                8.5 +/-    1.66      14.3 +/-    1.66  0.040 / 0.050
G29     167.6          12.1               11.8 +/-    1.37      31.4 +/-    1.37  0.040 / 0.060
G32     208.5          24.2               11.9 +/-    1.47      23.6 +/-    1.47  0.060 / 0.090