PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/05-17:12:40 G02 19.7 64.7 6.7 +/- 0.41 7.4 +/- 0.41 0.090 / 0.220 G05 152.1 54.0 10.1 +/- 0.63 12.2 +/- 0.63 0.080 / 0.190 G06 50.2 20.0 6.8 +/- 0.98 15.0 +/- 0.98 0.030 / 0.050 G12 196.4 73.3 8.5 +/- 0.64 8.8 +/- 0.64 0.030 / 0.050 G19 91.7 18.0 9.3 +/- 1.59 21.4 +/- 1.59 0.040 / 0.060 G25 306.2 48.6 8.1 +/- 1.16 10.4 +/- 1.16 0.050 / 0.070 G29 300.7 20.7 7.3 +/- 2.15 15.8 +/- 2.15 0.020 / 0.030