PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/29-00:27:20 G02 36.5 52.6 11.2 +/- 0.74 13.7 +/- 0.74 0.040 / 0.040 G05 129.6 65.0 12.7 +/- 0.41 13.9 +/- 0.41 0.030 / 0.030 G06 55.9 12.6 8.3 +/- 2.42 21.9 +/- 2.42 0.030 / 0.030 G12 193.8 63.5 12.1 +/- 0.48 13.3 +/- 0.48 0.040 / 0.030 G25 292.5 54.9 11.2 +/- 1.73 13.4 +/- 1.73 0.080 / 0.150 G29 309.1 29.5 11.4 +/- 1.19 20.2 +/- 1.19 0.120 / 0.190