PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/08-03:28:00 G10 252.3 28.0 12.2 +/- 2.24 22.3 +/- 2.24 0.040 / 0.050 G13 51.8 28.8 6.4 +/- 1.65 11.4 +/- 1.65 0.040 / 0.040 G15 83.4 57.4 7.9 +/- 0.51 9.2 +/- 0.51 0.070 / 0.170 G16 292.7 15.6 7.4 +/- 2.92 18.2 +/- 2.92 0.070 / 0.150 G20 280.5 59.1 10.4 +/- 0.91 12.0 +/- 0.91 0.120 / 0.780 G21 335.3 61.1 9.5 +/- 0.64 10.7 +/- 0.64 0.170 / 0.580 G26 264.5 14.8 10.2 +/- 1.15 25.5 +/- 1.15 0.090 / 0.110 G29 165.8 48.5 8.7 +/- 1.15 11.1 +/- 1.15 0.090 / 0.110