PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/07/08-04:42:40 G01 317.9 21.6 7.1 +/- 1.51 15.1 +/- 1.51 0.150 / 0.230 G08 257.4 12.0 8.6 +/- 3.60 22.9 +/- 3.60 0.130 / 0.280 G10 85.0 50.0 5.7 +/- 1.64 7.1 +/- 1.64 0.050 / 0.040 G11 300.5 24.0 6.0 +/- 1.59 12.0 +/- 1.59 0.040 / 0.050 G14 304.6 71.2 5.2 +/- 0.56 5.5 +/- 0.56 0.120 / 0.230 G18 301.2 43.4 5.2 +/- 3.73 7.2 +/- 3.73 0.150 / 0.160 G20 108.0 27.2 5.4 +/- 1.16 10.1 +/- 1.16 0.050 / 0.050 G22 302.6 12.7 8.6 +/- 2.50 22.5 +/- 2.50 0.050 / 0.050 G31 173.8 46.2 7.3 +/- 1.07 9.7 +/- 1.07 0.210 / 0.380 G32 9.3 66.6 3.7 +/- 0.93 4.0 +/- 0.93 0.250 / 0.360