PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/04-01:58:00 G01 225.5 18.2 6.8 +/- 1.81 15.5 +/- 1.81 0.030 / 0.040 G03 294.2 65.8 3.5 +/- 0.92 3.8 +/- 0.92 0.030 / 0.040 G14 82.9 28.0 3.0 +/- 1.60 5.5 +/- 1.60 0.150 / 0.430 G16 145.7 43.3 8.2 +/- 0.69 11.3 +/- 0.69 0.170 / 0.450 G22 228.1 72.0 5.9 +/- 0.49 6.2 +/- 0.49 0.100 / 0.200 G23 306.5 37.1 5.3 +/- 1.62 8.1 +/- 1.62 0.100 / 0.200 G26 100.2 53.6 5.4 +/- 1.13 6.5 +/- 1.13 0.050 / 0.100 G31 45.2 32.6 2.2 +/- 0.64 3.6 +/- 0.64 0.050 / 0.090