PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/05-16:12:50 G02 203.1 28.6 10.4 +/- 0.99 18.7 +/- 0.99 0.230 / 0.350 G06 159.5 66.6 9.8 +/- 0.97 10.6 +/- 0.97 0.090 / 0.290 G12 306.7 16.2 7.6 +/- 2.79 18.3 +/- 2.79 0.140 / 0.170 G17 33.4 51.3 9.0 +/- 0.61 11.1 +/- 0.61 0.140 / 0.130 G19 343.2 68.1 9.5 +/- 1.03 10.1 +/- 1.03 0.030 / 0.030 G24 300.5 37.3 9.8 +/- 1.40 14.9 +/- 1.40 0.040 / 0.050 G28 98.7 33.7 10.4 +/- 0.43 16.9 +/- 0.43 0.060 / 0.110