PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/05-21:42:50 G02 224.9 68.2 13.6 +/- 0.67 14.5 +/- 0.67 0.040 / 0.060 G06 44.9 65.6 12.9 +/- 0.61 14.0 +/- 0.61 0.030 / 0.050 G12 321.1 45.0 13.0 +/- 0.99 17.5 +/- 0.99 0.050 / 0.110 G17 63.0 29.1 11.8 +/- 1.13 21.1 +/- 1.13 0.050 / 0.070 G19 46.6 45.5 12.4 +/- 0.73 16.6 +/- 0.73 0.030 / 0.020 G24 254.2 39.0 17.0 +/- 1.05 25.1 +/- 1.05 0.020 / 0.030