PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-01:28:10
G10     262.6          35.5               11.7 +/-    0.87      18.5 +/-    0.87  0.140 / 0.280
G13     44.1           21.4                8.6 +/-    1.90      18.3 +/-    1.90  0.140 / 0.350
G15     66.3           53.5                9.5 +/-    0.47      11.6 +/-    0.47  0.110 / 0.290
G16     281.7          13.6                9.5 +/-    0.88      24.4 +/-    0.88  0.120 / 0.290
G20     276.7          47.7               15.6 +/-    0.96      20.3 +/-    0.96  0.100 / 0.310
G21     351.4          68.6                9.3 +/-    1.09       9.9 +/-    1.09  0.080 / 0.390
G24     122.8          11.8               13.6 +/-    2.96      36.5 +/-    2.96  0.060 / 0.050
G27     320.4          15.4                8.4 +/-    1.58      20.6 +/-    1.58  0.060 / 0.070
G29     167.8          36.7               13.2 +/-    1.79      20.3 +/-    1.79  0.090 / 0.080