PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/26-02:13:00 G08 313.5 16.9 7.8 +/- 2.18 18.6 +/- 2.18 0.050 / 0.070 G10 322.7 58.4 7.9 +/- 0.82 9.1 +/- 0.82 0.060 / 0.090 G14 215.8 24.1 13.8 +/- 5.63 27.5 +/- 5.63 0.110 / 0.390 G15 46.1 17.1 4.5 +/- 0.31 10.6 +/- 0.31 0.120 / 0.280 G20 338.6 63.2 8.2 +/- 0.43 9.0 +/- 0.43 0.030 / 0.030 G21 128.3 62.9 8.3 +/- 0.63 9.2 +/- 0.63 0.040 / 0.030 G24 78.5 29.6 6.9 +/- 0.74 12.2 +/- 0.74 0.070 / 0.130 G27 281.7 37.7 9.3 +/- 1.01 14.1 +/- 1.01 0.070 / 0.130 G32 219.0 49.2 10.3 +/- 0.70 13.1 +/- 0.70 0.040 / 0.060