PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/28-22:27:20 G02 38.1 51.2 11.1 +/- 0.49 13.8 +/- 0.49 0.030 / 0.040 G05 124.0 66.8 12.2 +/- 0.52 13.2 +/- 0.52 0.030 / 0.040 G06 57.8 10.0 8.7 +/- 2.24 24.2 +/- 2.24 0.030 / 0.040 G12 189.6 59.1 12.7 +/- 1.20 14.6 +/- 1.20 0.030 / 0.050 G25 286.5 56.7 10.4 +/- 1.19 12.2 +/- 1.19 0.040 / 0.050 G29 311.1 31.6 9.7 +/- 1.35 16.5 +/- 1.35 0.040 / 0.050