PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/10-09:27:40 G03 189.8 16.3 3.5 +/- 1.38 8.5 +/- 1.38 0.090 / 0.300 G07 297.1 41.3 4.9 +/- 0.96 7.0 +/- 0.96 0.110 / 0.280 G08 134.5 34.1 6.0 +/- 1.11 9.7 +/- 1.11 0.050 / 0.080 G09 318.5 72.7 4.5 +/- 0.70 4.7 +/- 0.70 0.040 / 0.080 G16 41.7 29.9 1.8 +/- 0.72 3.2 +/- 0.72 0.060 / 0.130 G23 132.7 73.5 5.8 +/- 0.93 6.1 +/- 0.93 0.060 / 0.160 G27 91.7 36.0 4.1 +/- 0.67 6.4 +/- 0.67 0.030 / 0.040 G30 278.2 15.3 7.0 +/- 2.18 17.2 +/- 2.18 0.040 / 0.040