PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/27-01:58:00 G08 317.0 14.4 5.7 +/- 3.25 14.5 +/- 3.25 0.050 / 0.060 G10 314.0 56.5 7.9 +/- 1.50 9.2 +/- 1.50 0.050 / 0.070 G14 213.8 19.6 13.3 +/- 2.61 29.5 +/- 2.61 0.040 / 0.050 G15 45.8 21.4 5.4 +/- 2.41 11.4 +/- 2.41 0.040 / 0.050 G20 327.3 61.2 12.7 +/- 0.53 14.2 +/- 0.53 0.170 / 0.440 G21 120.8 67.3 9.7 +/- 0.60 10.4 +/- 0.60 0.280 / 0.350 G24 84.2 29.1 7.9 +/- 1.55 14.1 +/- 1.55 0.090 / 0.110 G27 288.1 37.3 9.8 +/- 1.75 15.0 +/- 1.75 0.070 / 0.100 G32 215.6 44.3 10.9 +/- 1.13 14.8 +/- 1.13 0.150 / 0.330