PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/14-16:28:10 G02 213.3 52.8 11.9 +/- 1.20 14.5 +/- 1.20 0.050 / 0.060 G06 67.9 75.8 9.7 +/- 0.57 9.9 +/- 0.57 0.050 / 0.070 G12 318.4 36.3 8.2 +/- 1.05 12.7 +/- 1.05 0.050 / 0.080 G17 54.4 34.1 8.1 +/- 0.49 13.0 +/- 0.49 0.040 / 0.080 G19 29.1 54.7 8.7 +/- 0.56 10.4 +/- 0.56 0.020 / 0.020 G24 269.4 42.8 10.2 +/- 0.68 14.2 +/- 0.68 0.030 / 0.030 G28 119.3 17.2 9.0 +/- 1.39 21.2 +/- 1.39 0.040 / 0.040