PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/19-00:12:40 G01 219.8 10.7 8.0 +/- 2.69 21.9 +/- 2.69 0.050 / 0.040 G03 261.4 69.9 5.3 +/- 0.67 5.6 +/- 0.67 0.040 / 0.040 G09 300.7 16.8 6.0 +/- 2.61 14.2 +/- 2.61 0.330 / 0.380 G14 94.5 18.1 6.1 +/- 1.17 14.1 +/- 1.17 0.240 / 0.370 G16 136.5 53.6 8.2 +/- 0.72 9.9 +/- 0.72 0.110 / 0.330 G22 203.1 62.5 7.0 +/- 0.77 7.8 +/- 0.77 0.150 / 0.350 G23 312.9 42.3 5.2 +/- 1.97 7.3 +/- 1.97 0.040 / 0.070 G26 81.8 54.6 4.3 +/- 0.47 5.1 +/- 0.47 0.040 / 0.060 G31 48.6 26.6 3.8 +/- 1.12 7.1 +/- 1.12 0.030 / 0.040