PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/10-16:12:40 G02 334.2 77.9 9.9 +/- 0.67 10.1 +/- 0.67 0.110 / 0.210 G05 165.2 35.2 15.9 +/- 1.00 25.1 +/- 1.00 0.110 / 0.240 G06 42.7 36.0 7.9 +/- 0.63 12.4 +/- 0.63 0.060 / 0.090 G12 299.3 78.1 10.2 +/- 0.66 10.4 +/- 0.66 0.050 / 0.080 G19 75.5 29.1 10.4 +/- 0.70 18.5 +/- 0.70 0.020 / 0.030 G24 223.6 19.7 12.2 +/- 2.16 27.1 +/- 2.16 0.020 / 0.030 G25 316.2 33.8 9.4 +/- 1.70 15.2 +/- 1.70 0.040 / 0.080