PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/06-21:12:30 G02 213.2 56.3 18.3 +/- 1.19 21.6 +/- 1.19 0.050 / 0.080 G06 67.2 76.3 16.5 +/- 0.76 17.0 +/- 0.76 0.050 / 0.110 G12 317.7 34.0 14.7 +/- 0.81 23.8 +/- 0.81 0.050 / 0.090 G17 53.0 36.5 14.6 +/- 1.46 22.6 +/- 1.46 0.070 / 0.060 G19 32.4 53.1 16.6 +/- 0.48 20.2 +/- 0.48 0.040 / 0.080 G24 269.8 42.4 17.0 +/- 1.03 23.8 +/- 1.03 0.030 / 0.090 G28 120.1 16.3 17.1 +/- 1.68 41.1 +/- 1.68 0.110 / 0.280