PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/07/11-02:58:00 G08 299.0 21.6 7.7 +/- 1.04 16.3 +/- 1.04 0.060 / 0.110 G10 4.6 62.7 7.0 +/- 1.21 7.8 +/- 1.21 0.070 / 0.080 G14 226.8 43.4 9.0 +/- 2.13 12.4 +/- 2.13 0.030 / 0.030 G20 60.9 54.0 7.0 +/- 0.35 8.4 +/- 0.35 0.030 / 0.030 G21 145.3 43.9 8.2 +/- 0.93 11.3 +/- 0.93 0.060 / 0.060 G24 59.1 26.9 4.9 +/- 1.36 9.1 +/- 1.36 0.040 / 0.060 G27 258.3 33.4 7.6 +/- 3.31 12.5 +/- 3.31 0.120 / 0.160 G32 239.0 63.9 7.2 +/- 0.66 7.9 +/- 0.66 0.090 / 0.130