PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/10-08:42:40 G01 66.0 31.4 4.3 +/- 0.80 7.3 +/- 0.80 0.030 / 0.040 G07 138.4 27.6 7.0 +/- 0.90 12.9 +/- 0.90 0.040 / 0.040 G11 52.6 31.3 5.1 +/- 1.73 8.7 +/- 1.73 0.110 / 0.280 G13 269.7 38.3 5.5 +/- 2.99 8.2 +/- 2.99 0.120 / 0.280 G15 299.6 15.9 1.6 +/- 1.13 4.0 +/- 1.13 0.100 / 0.110 G17 235.7 70.2 7.0 +/- 0.76 7.4 +/- 0.76 0.100 / 0.090 G19 225.2 46.6 5.9 +/- 2.29 7.8 +/- 2.29 0.050 / 0.060 G28 8.9 61.0 4.4 +/- 1.55 5.0 +/- 1.55 0.050 / 0.050 G30 138.7 62.0 7.5 +/- 0.61 8.4 +/- 0.61 0.070 / 0.100