PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/08-17:12:30 G02 24.2 61.4 10.0 +/- 0.67 11.2 +/- 0.67 0.040 / 0.030 G05 148.1 58.8 12.3 +/- 0.59 14.1 +/- 0.59 0.030 / 0.030 G06 52.6 16.8 8.4 +/- 2.24 20.0 +/- 2.24 0.030 / 0.030 G12 193.8 68.4 10.5 +/- 0.51 11.2 +/- 0.51 0.030 / 0.030 G19 96.2 15.1 10.3 +/- 2.48 25.6 +/- 2.48 0.050 / 0.050 G25 298.9 53.4 9.9 +/- 1.74 12.0 +/- 1.74 0.060 / 0.050 G29 305.0 25.2 8.9 +/- 1.13 17.4 +/- 1.13 0.160 / 0.190