PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/25-09:28:10 G03 235.6 68.9 3.4 +/- 1.23 3.6 +/- 1.23 0.100 / 0.290 G07 248.0 10.6 -6.1 +/- 17.85 -16.8 +/- 17.85 0.110 / 0.280 G09 302.4 16.6 2.4 +/- 2.21 5.8 +/- 2.21 0.050 / 0.060 G14 98.7 15.1 2.7 +/- 1.99 6.6 +/- 1.99 0.040 / 0.060 G16 129.1 57.6 5.1 +/- 0.61 5.9 +/- 0.61 0.040 / 0.050 G22 195.3 55.5 5.4 +/- 1.11 6.4 +/- 1.11 0.040 / 0.050 G23 321.3 51.3 3.8 +/- 1.43 4.7 +/- 1.43 0.080 / 0.260 G26 71.2 52.2 4.0 +/- 0.62 4.9 +/- 0.62 0.100 / 0.260 G31 52.3 19.0 1.5 +/- 1.20 3.4 +/- 1.20 0.060 / 0.080