PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/11-21:28:10 G02 232.9 72.5 13.3 +/- 1.21 13.8 +/- 1.21 0.050 / 0.280 G05 172.5 13.6 17.6 +/- 3.68 45.2 +/- 3.68 0.050 / 0.260 G06 41.9 60.7 12.9 +/- 0.38 14.5 +/- 0.38 0.060 / 0.100 G12 321.8 50.1 10.2 +/- 0.88 12.9 +/- 0.88 0.070 / 0.120 G17 67.2 26.0 10.7 +/- 1.61 20.5 +/- 1.61 0.030 / 0.040 G19 51.7 42.6 11.1 +/- 1.00 15.5 +/- 1.00 0.040 / 0.050 G24 248.4 36.7 15.6 +/- 1.29 24.0 +/- 1.29 0.050 / 0.070