PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/04/10-02:42:40 G02 0.6 75.6 6.2 +/- 0.52 6.4 +/- 0.52 0.030 / 0.030 G05 161.3 37.7 9.3 +/- 0.55 14.1 +/- 0.55 0.020 / 0.020 G06 42.4 37.6 5.7 +/- 0.80 8.6 +/- 0.80 0.040 / 0.050 G12 305.6 73.6 8.3 +/- 0.62 8.6 +/- 0.62 0.050 / 0.060 G17 87.2 13.1 6.7 +/- 2.34 17.4 +/- 2.34 0.140 / 0.190 G19 77.7 25.9 7.5 +/- 2.28 14.3 +/- 2.28 0.110 / 0.280 G24 226.2 20.6 9.6 +/- 2.51 20.8 +/- 2.51 0.040 / 0.050 G25 316.8 30.9 7.5 +/- 1.00 12.8 +/- 1.00 0.040 / 0.040