PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/11-04:43:00 G01 223.8 14.6 7.6 +/- 4.64 19.1 +/- 4.64 0.160 / 0.300 G03 280.0 68.4 6.7 +/- 0.76 7.2 +/- 0.76 0.250 / 0.370 G09 297.7 14.1 7.1 +/- 1.48 18.1 +/- 1.48 0.040 / 0.040 G14 89.3 22.7 4.0 +/- 1.18 8.2 +/- 1.18 0.040 / 0.050 G16 140.7 49.2 8.8 +/- 1.04 11.2 +/- 1.04 0.120 / 0.270 G22 210.9 67.7 8.1 +/- 0.90 8.6 +/- 0.90 0.110 / 0.260 G23 309.6 39.3 7.5 +/- 1.71 11.1 +/- 1.71 0.050 / 0.100 G26 88.8 54.1 6.9 +/- 0.44 8.3 +/- 0.44 0.060 / 0.100 G31 47.0 28.4 2.9 +/- 1.18 5.2 +/- 1.18 0.050 / 0.080