PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/07/15-02:43:00 G08 298.5 21.6 9.0 +/- 1.11 19.0 +/- 1.11 0.060 / 0.100 G10 6.0 62.7 9.4 +/- 1.41 10.4 +/- 1.41 0.060 / 0.090 G14 227.3 43.9 12.5 +/- 2.69 17.1 +/- 2.69 0.030 / 0.030 G20 61.8 53.7 10.6 +/- 0.36 12.8 +/- 0.36 0.030 / 0.030 G21 145.7 43.3 11.9 +/- 0.82 16.4 +/- 0.82 0.040 / 0.070 G24 58.6 26.7 9.5 +/- 1.40 18.0 +/- 1.40 0.050 / 0.080 G27 257.6 33.1 9.4 +/- 3.65 15.4 +/- 3.65 0.090 / 0.110 G32 240.1 64.6 10.8 +/- 0.85 11.8 +/- 0.85 0.090 / 0.140