PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/10-01:12:40 G02 22.9 63.8 11.0 +/- 0.57 12.1 +/- 0.57 0.030 / 0.020 G05 151.2 52.4 15.7 +/- 0.70 19.3 +/- 0.70 0.030 / 0.030 G06 48.3 24.2 10.4 +/- 1.41 20.6 +/- 1.41 0.030 / 0.040 G12 228.3 78.3 13.1 +/- 0.86 13.3 +/- 0.86 0.030 / 0.040 G19 90.4 17.7 13.3 +/- 1.51 31.0 +/- 1.51 0.080 / 0.070 G25 309.9 44.2 11.4 +/- 1.10 15.5 +/- 1.10 0.070 / 0.120 G29 299.0 19.4 9.2 +/- 1.05 20.5 +/- 1.05 0.060 / 0.070