PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/03-06:42:50 G03 204.3 45.8 6.9 +/- 1.46 9.2 +/- 1.46 0.140 / 0.120 G07 268.5 24.0 5.1 +/- 2.49 10.3 +/- 2.49 0.070 / 0.120 G08 154.1 10.3 -17.0 +/- 11.10 -47.2 +/- 11.10 0.030 / 0.040 G09 317.8 43.4 4.7 +/- 0.31 6.4 +/- 0.31 0.030 / 0.030 G16 59.8 56.7 6.1 +/- 0.96 7.1 +/- 0.96 0.110 / 0.210 G22 185.9 29.1 5.6 +/- 1.80 10.0 +/- 1.80 0.090 / 0.150 G23 343.3 71.1 4.7 +/- 0.34 5.0 +/- 0.34 0.060 / 0.040 G26 44.9 29.6 2.9 +/- 1.83 5.0 +/- 1.83 0.040 / 0.030 G27 123.8 19.9 5.0 +/- 1.81 10.9 +/- 1.81 0.180 / 0.220