PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/29-06:27:40 G08 308.8 18.7 6.4 +/- 1.49 14.5 +/- 1.49 0.080 / 0.200 G10 337.5 60.8 3.8 +/- 0.77 4.3 +/- 0.77 0.070 / 0.180 G14 220.0 29.3 8.9 +/- 1.46 15.8 +/- 1.46 0.060 / 0.060 G20 60.9 49.1 4.0 +/- 1.19 5.1 +/- 1.19 0.050 / 0.050 G21 137.1 54.8 8.1 +/- 1.17 9.7 +/- 1.17 0.060 / 0.090 G24 70.1 29.5 4.7 +/- 0.31 8.3 +/- 0.31 0.060 / 0.090 G27 270.7 36.9 8.3 +/- 1.01 12.7 +/- 1.01 0.040 / 0.030 G32 226.2 57.1 10.3 +/- 0.67 12.0 +/- 0.67 0.040 / 0.040