PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/14-01:58:00 G03 240.3 68.3 4.2 +/- 0.60 4.5 +/- 0.60 0.050 / 0.040 G09 304.3 20.5 2.8 +/- 1.94 6.2 +/- 1.94 0.040 / 0.050 G14 98.6 16.9 4.8 +/- 0.97 11.4 +/- 0.97 0.140 / 0.240 G16 121.3 58.9 5.7 +/- 0.41 6.5 +/- 0.41 0.140 / 0.280 G22 198.2 55.6 5.4 +/- 0.81 6.4 +/- 0.81 0.130 / 0.330 G23 320.5 50.4 4.9 +/- 0.92 6.2 +/- 0.92 0.120 / 0.270 G26 67.8 50.7 3.9 +/- 0.76 4.9 +/- 0.76 0.030 / 0.040 G31 53.1 17.9 3.0 +/- 2.20 7.0 +/- 2.20 0.030 / 0.040