PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/09-00:27:40 G05 48.2 18.3 6.8 +/- 0.73 15.5 +/- 0.73 0.070 / 0.140 G10 234.8 10.7 -4.4 +/- 43.38 -12.0 +/- 43.38 0.070 / 0.140 G13 78.6 36.4 9.7 +/- 0.66 14.9 +/- 0.66 0.110 / 0.360 G15 130.6 50.5 12.7 +/- 0.88 15.9 +/- 0.88 0.140 / 0.340 G16 315.0 12.4 8.2 +/- 2.41 21.6 +/- 2.41 0.110 / 0.390 G20 243.6 25.6 10.3 +/- 1.11 19.8 +/- 1.11 0.090 / 0.460 G21 310.3 44.8 9.7 +/- 1.47 13.1 +/- 1.47 0.040 / 0.090 G25 200.4 12.6 11.8 +/- 1.09 31.1 +/- 1.09 0.040 / 0.080 G26 288.2 21.0 8.3 +/- 1.98 17.8 +/- 1.98 0.240 / 0.280 G29 154.2 76.2 11.0 +/- 0.81 11.3 +/- 0.81 0.210 / 0.260