PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/11-11:12:30 G08 297.2 23.2 5.8 +/- 0.77 11.8 +/- 0.77 0.050 / 0.060 G10 358.9 62.6 5.1 +/- 0.65 5.7 +/- 0.65 0.040 / 0.060 G14 225.4 43.0 7.4 +/- 1.85 10.3 +/- 1.85 0.030 / 0.030 G20 58.6 54.6 5.3 +/- 0.83 6.4 +/- 0.83 0.030 / 0.020 G21 143.4 41.6 6.1 +/- 1.00 8.6 +/- 1.00 0.110 / 0.030 G24 59.0 26.1 5.2 +/- 1.92 10.0 +/- 1.92 0.070 / 0.040 G27 262.4 34.0 6.8 +/- 2.10 11.1 +/- 2.10 0.130 / 0.110 G32 235.3 59.3 7.1 +/- 1.68 8.1 +/- 1.68 0.110 / 0.120