PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/29-09:27:50 G01 66.1 31.5 1.8 +/- 1.31 3.1 +/- 1.31 0.080 / 0.090 G07 138.4 27.3 8.0 +/- 1.44 14.8 +/- 1.44 0.120 / 0.120 G11 52.4 31.0 3.1 +/- 1.11 5.2 +/- 1.11 0.050 / 0.070 G13 269.7 38.2 7.4 +/- 2.69 11.0 +/- 2.69 0.040 / 0.080 G15 300.1 15.6 2.4 +/- 1.25 5.9 +/- 1.25 0.160 / 0.210 G17 235.4 69.7 7.1 +/- 0.46 7.5 +/- 0.46 0.150 / 0.280 G18 46.3 16.6 2.5 +/- 1.89 6.1 +/- 1.89 0.100 / 0.110 G19 225.2 46.5 6.7 +/- 2.13 8.8 +/- 2.13 0.080 / 0.100 G28 9.3 61.0 5.5 +/- 1.09 6.2 +/- 1.09 0.030 / 0.030 G30 138.6 61.6 6.2 +/- 0.36 7.0 +/- 0.36 0.030 / 0.030