PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/14-02:28:10 G01 223.3 14.2 7.5 +/- 4.08 19.1 +/- 4.08 0.050 / 0.030 G03 278.5 68.7 5.3 +/- 0.91 5.6 +/- 0.91 0.050 / 0.030 G09 298.3 15.1 5.1 +/- 2.76 12.6 +/- 2.76 0.210 / 0.370 G14 90.0 21.8 3.8 +/- 1.39 7.9 +/- 1.39 0.180 / 0.250 G16 141.0 49.4 7.7 +/- 0.45 9.8 +/- 0.45 0.090 / 0.180 G22 211.0 67.4 5.6 +/- 0.29 6.0 +/- 0.29 0.150 / 0.240 G23 309.5 39.0 4.0 +/- 1.43 5.9 +/- 1.43 0.040 / 0.050 G26 89.3 54.5 6.4 +/- 1.37 7.7 +/- 1.37 0.040 / 0.070 G31 46.8 29.1 4.0 +/- 1.96 7.1 +/- 1.96 0.100 / 0.260