PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/22-09:27:50 G01 219.0 10.7 4.2 +/- 2.04 11.6 +/- 2.04 0.040 / 0.050 G03 254.2 71.2 3.5 +/- 0.58 3.7 +/- 0.58 0.040 / 0.050 G09 298.9 12.3 2.0 +/- 14.33 5.4 +/- 14.33 0.040 / 0.040 G14 93.8 18.8 3.1 +/- 1.59 7.1 +/- 1.59 0.030 / 0.040 G16 138.1 52.6 5.4 +/- 0.60 6.6 +/- 0.60 0.140 / 0.310 G22 200.1 61.6 5.6 +/- 0.49 6.3 +/- 0.49 0.170 / 0.320 G23 316.3 46.6 4.5 +/- 1.10 5.9 +/- 1.10 0.120 / 0.220 G26 81.6 54.2 5.7 +/- 0.66 6.9 +/- 0.66 0.100 / 0.260 G31 49.5 23.7 2.4 +/- 2.25 4.8 +/- 2.25 0.050 / 0.070