PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/11-19:12:30 G02 30.1 57.7 9.5 +/- 0.45 11.0 +/- 0.45 0.030 / 0.040 G05 140.7 61.7 13.1 +/- 0.64 14.7 +/- 0.64 0.030 / 0.050 G06 54.2 14.3 8.6 +/- 1.96 21.7 +/- 1.96 0.160 / 0.300 G12 190.4 65.2 10.5 +/- 1.24 11.4 +/- 1.24 0.100 / 0.200 G19 98.5 12.8 11.8 +/- 1.33 31.1 +/- 1.33 0.030 / 0.050 G25 296.8 53.9 9.5 +/- 0.69 11.5 +/- 0.69 0.030 / 0.050 G29 306.3 26.4 8.2 +/- 1.12 15.6 +/- 1.12 0.060 / 0.060