PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/09-06:57:40 G01 223.9 14.7 6.6 +/- 1.27 16.4 +/- 1.27 0.050 / 0.040 G03 280.9 68.1 5.1 +/- 0.30 5.5 +/- 0.30 0.040 / 0.040 G09 296.8 11.9 6.1 +/- 3.30 16.3 +/- 3.30 0.120 / 0.180 G14 89.0 23.4 3.9 +/- 1.44 8.0 +/- 1.44 0.100 / 0.220 G16 139.4 49.5 7.9 +/- 1.09 10.0 +/- 1.09 0.040 / 0.050 G22 210.7 67.8 5.3 +/- 0.99 5.7 +/- 0.99 0.040 / 0.040 G23 309.9 39.7 4.2 +/- 0.83 6.2 +/- 0.83 0.050 / 0.070 G26 87.1 53.5 5.8 +/- 0.73 7.1 +/- 0.73 0.040 / 0.080 G31 47.2 27.2 1.5 +/- 1.63 2.8 +/- 1.63 0.060 / 0.080