PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/24-02:42:30 G10 293.5 51.2 9.3 +/- 2.54 11.5 +/- 2.54 0.060 / 0.120 G15 46.6 30.3 7.2 +/- 1.97 12.5 +/- 1.97 0.090 / 0.090 G20 343.5 65.2 10.1 +/- 0.74 11.0 +/- 0.74 0.110 / 0.100 G21 82.3 75.9 10.3 +/- 0.84 10.6 +/- 0.84 0.080 / 0.060 G24 101.7 25.1 9.3 +/- 1.32 18.1 +/- 1.32 0.040 / 0.040 G27 305.1 32.1 8.1 +/- 1.62 13.6 +/- 1.62 0.050 / 0.030 G32 209.3 26.4 10.8 +/- 1.21 20.5 +/- 1.21 0.060 / 0.090