PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/26-06:12:30 G03 248.6 68.5 4.8 +/- 1.43 5.1 +/- 1.43 0.040 / 0.050 G09 303.7 20.1 2.6 +/- 1.30 5.6 +/- 1.30 0.040 / 0.040 G14 98.5 15.9 3.3 +/- 1.86 8.1 +/- 1.86 0.040 / 0.060 G16 122.8 58.5 7.3 +/- 0.91 8.4 +/- 0.91 0.040 / 0.060 G22 198.7 57.7 4.6 +/- 0.96 5.3 +/- 0.96 0.100 / 0.270 G23 317.6 47.2 3.9 +/- 0.60 5.1 +/- 0.60 0.100 / 0.260 G26 68.3 50.5 5.8 +/- 0.60 7.2 +/- 0.60 0.030 / 0.040 G31 52.3 18.5 2.4 +/- 2.79 5.6 +/- 2.79 0.030 / 0.040