PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/11-09:57:30 G02 206.7 41.6 5.6 +/- 0.62 7.9 +/- 0.62 0.050 / 0.060 G06 140.1 76.7 8.2 +/- 0.64 8.4 +/- 0.64 0.050 / 0.060 G12 311.8 22.4 3.7 +/- 1.98 7.7 +/- 1.98 0.090 / 0.150 G17 45.2 41.1 5.5 +/- 0.70 7.8 +/- 0.70 0.090 / 0.130 G19 10.6 61.9 5.0 +/- 0.61 5.6 +/- 0.61 0.030 / 0.020 G24 283.3 43.4 5.2 +/- 1.01 7.2 +/- 1.01 0.030 / 0.020 G28 109.3 27.0 8.7 +/- 1.69 16.2 +/- 1.69 0.040 / 0.040