PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/15-01:12:40
G10     259.1          33.2               11.3 +/-    1.93      18.6 +/-    1.93  0.120 / 0.160
G13     46.2           23.9                9.0 +/-    2.06      18.0 +/-    2.06  0.130 / 0.290
G15     71.8           55.6               11.3 +/-    0.83      13.4 +/-    0.83  0.040 / 0.040
G16     285.0          14.5                9.3 +/-    1.54      23.3 +/-    1.54  0.040 / 0.040
G20     271.6          44.4                9.8 +/-    2.52      13.4 +/-    2.52  0.070 / 0.130
G21     345.3          66.2               11.8 +/-    0.33      12.7 +/-    0.33  0.060 / 0.290
G24     125.5          9.8               -13.1 +/-   24.64     -36.8 +/-   24.64  0.180 / 0.280
G26     257.8          11.5                9.7 +/-   22.29      26.2 +/-   22.29  0.120 / 0.260
G27     321.5          12.6                7.4 +/-    9.45      19.4 +/-    9.45  0.110 / 0.230
G29     167.3          40.5               12.3 +/-    1.39      17.7 +/-    1.39  0.050 / 0.030