PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/01-02:27:30 G01 220.1 12.5 7.9 +/- 2.51 20.8 +/- 2.51 0.030 / 0.050 G03 273.1 69.7 4.2 +/- 0.58 4.5 +/- 0.58 0.030 / 0.050 G09 297.9 12.6 5.9 +/- 2.87 15.6 +/- 2.87 0.170 / 0.410 G14 90.1 23.1 2.9 +/- 1.69 6.0 +/- 1.69 0.170 / 0.450 G16 137.7 50.7 6.1 +/- 0.67 7.7 +/- 0.67 0.040 / 0.070 G22 209.9 65.8 5.0 +/- 0.71 5.4 +/- 0.71 0.050 / 0.070 G23 312.7 42.9 5.0 +/- 0.89 6.9 +/- 0.89 0.100 / 0.200 G26 85.3 54.0 4.2 +/- 0.28 5.0 +/- 0.28 0.110 / 0.260 G31 48.3 25.8 3.3 +/- 1.20 6.3 +/- 1.20 0.060 / 0.090