PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/16-02:58:00 G01 230.3 22.7 6.4 +/- 3.61 13.2 +/- 3.61 0.300 / 0.150 G03 304.3 61.3 5.3 +/- 0.97 5.9 +/- 0.97 0.200 / 0.190 G14 77.5 31.2 4.7 +/- 1.86 8.0 +/- 1.86 0.060 / 0.120 G16 150.7 37.2 6.3 +/- 0.78 9.7 +/- 0.78 0.060 / 0.120 G18 207.4 12.0 4.2 +/- 1.68 11.2 +/- 1.68 0.170 / 0.340 G22 249.8 74.5 7.1 +/- 0.38 7.3 +/- 0.38 0.090 / 0.310 G23 302.3 33.5 2.1 +/- 1.90 3.4 +/- 1.90 0.150 / 0.230 G26 111.0 51.5 6.2 +/- 0.97 7.7 +/- 0.97 0.430 / 0.270 G31 43.3 37.8 4.1 +/- 0.97 6.2 +/- 0.97 0.040 / 0.030 G32 92.9 10.6 6.2 +/- 2.54 17.2 +/- 2.54 0.040 / 0.030