PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/09-02:42:40 G08 300.2 22.5 6.2 +/- 1.12 12.9 +/- 1.12 0.050 / 0.070 G10 346.6 61.8 7.2 +/- 0.84 8.1 +/- 0.84 0.040 / 0.070 G14 223.4 40.5 10.4 +/- 1.06 15.0 +/- 1.06 0.050 / 0.100 G18 49.8 56.5 6.8 +/- 0.77 7.9 +/- 0.77 0.060 / 0.080 G21 140.9 48.7 9.9 +/- 0.81 12.7 +/- 0.81 0.030 / 0.040 G24 66.0 29.5 6.6 +/- 0.84 11.7 +/- 0.84 0.030 / 0.040 G27 262.2 35.3 9.6 +/- 1.40 15.2 +/- 1.40 0.080 / 0.110 G32 232.2 59.0 9.9 +/- 0.92 11.3 +/- 0.92 0.060 / 0.110