PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/11-03:27:50 G01 253.9 36.7 10.8 +/- 1.46 16.5 +/- 1.46 0.040 / 0.040 G03 316.4 40.2 7.1 +/- 2.06 10.3 +/- 2.06 0.040 / 0.040 G11 238.3 13.2 9.2 +/- 2.73 24.0 +/- 2.73 0.050 / 0.070 G14 56.9 43.0 6.9 +/- 0.85 9.6 +/- 0.85 0.040 / 0.060 G18 221.6 29.0 11.6 +/- 2.51 20.7 +/- 2.51 0.100 / 0.450 G22 307.5 63.3 8.0 +/- 1.01 8.8 +/- 1.01 0.110 / 0.430 G25 40.3 10.1 3.8 +/- 1.17 10.6 +/- 1.17 0.050 / 0.090 G26 137.2 36.4 10.8 +/- 0.98 16.8 +/- 0.98 0.070 / 0.070 G31 42.0 60.0 7.2 +/- 0.49 8.2 +/- 0.49 0.100 / 0.310 G32 75.8 23.3 6.7 +/- 2.23 13.6 +/- 2.23 0.070 / 0.340