PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/12-02:58:00 G08 261.8 16.2 10.5 +/- 3.07 25.3 +/- 3.07 0.200 / 0.290 G10 69.6 56.2 7.4 +/- 1.77 8.7 +/- 1.77 0.190 / 0.490 G11 307.7 20.4 8.0 +/- 1.63 17.3 +/- 1.63 0.150 / 0.300 G14 275.7 67.5 7.9 +/- 1.14 8.5 +/- 1.14 0.210 / 0.390 G18 309.6 35.7 8.3 +/- 1.85 13.1 +/- 1.85 0.040 / 0.060 G20 77.0 60.9 11.0 +/- 1.13 12.3 +/- 1.13 0.040 / 0.060 G21 155.7 12.0 7.8 +/- 2.83 21.0 +/- 2.83 0.100 / 0.360 G27 228.6 12.9 9.4 +/- 20.70 24.6 +/- 20.70 0.100 / 0.310 G31 175.6 37.0 11.5 +/- 1.22 17.6 +/- 1.22 0.190 / 0.290 G32 358.9 70.8 7.2 +/- 0.69 7.6 +/- 0.69 0.140 / 0.270