PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/30-04:57:30 G03 243.6 69.1 5.3 +/- 0.34 5.6 +/- 0.34 0.120 / 0.400 G09 302.6 17.6 3.3 +/- 0.96 7.8 +/- 0.96 0.110 / 0.330 G14 97.7 16.8 3.7 +/- 1.34 8.8 +/- 1.34 0.040 / 0.060 G16 126.1 57.6 5.3 +/- 0.55 6.2 +/- 0.55 0.040 / 0.060 G22 198.9 57.3 5.2 +/- 0.57 6.1 +/- 0.57 0.050 / 0.070 G23 320.4 50.4 4.5 +/- 1.06 5.7 +/- 1.06 0.050 / 0.070 G26 70.7 51.7 4.5 +/- 0.33 5.5 +/- 0.33 0.040 / 0.070 G31 52.3 18.9 1.6 +/- 0.60 3.6 +/- 0.60 0.040 / 0.060