PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/22-10:57:40 G01 258.8 38.3 11.9 +/- 26.09 17.8 +/- 26.09 0.030 / 0.040 G03 316.6 39.1 4.5 +/- 1.33 6.7 +/- 1.33 0.050 / 0.250 G11 243.4 15.7 8.9 +/- 25.37 21.7 +/- 25.37 0.040 / 0.080 G14 49.2 48.3 8.9 +/- 26.62 11.5 +/- 26.62 0.050 / 0.260 G18 226.5 32.6 10.9 +/- 26.34 18.0 +/- 26.34 0.060 / 0.100 G22 309.5 64.6 10.5 +/- 24.78 11.5 +/- 24.78 0.060 / 0.320 G23 283.6 19.1 -3.8 +/- 2.52 -8.5 +/- 2.52 0.140 / 0.280 G25 44.9 13.7 4.3 +/- 27.49 11.1 +/- 27.49 0.130 / 0.370 G31 43.6 62.4 11.5 +/- 26.34 12.8 +/- 26.34 0.070 / 0.090