PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/11-09:43:00 G01 317.3 21.7 1.6 +/- 1.94 3.4 +/- 1.94 0.050 / 0.060 G08 256.2 10.8 4.5 +/- 1.92 12.3 +/- 1.92 0.040 / 0.050 G10 86.8 50.6 5.3 +/- 0.92 6.6 +/- 0.92 0.030 / 0.030 G11 299.8 24.2 4.4 +/- 2.01 8.8 +/- 2.01 0.030 / 0.040 G14 299.3 69.1 4.0 +/- 0.37 4.3 +/- 0.37 0.090 / 0.310 G18 300.5 42.8 5.7 +/- 1.09 8.0 +/- 1.09 0.100 / 0.370 G22 304.2 18.0 3.4 +/- 1.61 7.8 +/- 1.61 0.070 / 0.180 G25 97.8 10.5 -7.6 +/- 28.80 -21.0 +/- 28.80 0.090 / 0.250 G31 172.5 49.2 5.5 +/- 0.51 6.9 +/- 0.51 0.130 / 0.260 G32 19.1 62.8 3.4 +/- 0.96 3.8 +/- 0.96 0.110 / 0.210