PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/05-15:28:10 G02 226.1 65.5 9.6 +/- 0.66 10.4 +/- 0.66 0.040 / 0.060 G06 44.1 63.1 9.0 +/- 0.35 10.0 +/- 0.35 0.040 / 0.050 G12 322.7 50.3 9.0 +/- 0.86 11.3 +/- 0.86 0.040 / 0.050 G17 66.1 24.7 8.6 +/- 0.76 16.9 +/- 0.76 0.060 / 0.060 G19 45.7 46.5 8.0 +/- 0.78 10.5 +/- 0.78 0.030 / 0.040 G24 250.9 38.5 10.5 +/- 1.45 15.6 +/- 1.45 0.030 / 0.030