PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/03-15:42:30 G02 32.3 55.8 7.3 +/- 0.42 8.6 +/- 0.42 0.040 / 0.050 G05 142.7 63.2 10.8 +/- 0.70 11.9 +/- 0.70 0.040 / 0.050 G06 55.5 13.1 5.6 +/- 1.47 14.7 +/- 1.47 0.040 / 0.040 G12 191.5 63.1 7.2 +/- 1.36 8.0 +/- 1.36 0.030 / 0.040 G19 100.8 11.4 6.9 +/- 1.47 18.6 +/- 1.47 0.030 / 0.050 G25 288.9 57.3 7.4 +/- 0.82 8.6 +/- 0.82 0.040 / 0.050 G29 309.0 29.6 6.2 +/- 1.70 10.9 +/- 1.70 0.060 / 0.120