PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/02/06-15:43:00 G01 307.6 33.4 4.8 +/- 1.87 7.8 +/- 1.87 0.030 / 0.050 G10 105.7 39.4 7.2 +/- 0.78 10.5 +/- 0.78 0.040 / 0.040 G11 280.7 28.3 -2.9 +/- 0.90 -5.2 +/- 0.90 0.060 / 0.060 G14 358.3 66.9 4.9 +/- 0.72 5.2 +/- 0.72 0.060 / 0.060 G18 272.1 51.8 8.1 +/- 5.96 10.0 +/- 5.96 0.080 / 0.080 G20 120.3 14.2 6.6 +/- 2.41 16.6 +/- 2.41 0.090 / 0.100 G22 310.1 26.8 5.9 +/- 1.81 11.0 +/- 1.81 0.080 / 0.160 G25 79.4 15.6 7.6 +/- 1.69 18.6 +/- 1.69 0.110 / 0.150 G31 173.7 61.1 8.5 +/- 0.65 9.5 +/- 0.65 0.050 / 0.050 G32 32.3 55.0 5.9 +/- 1.05 7.0 +/- 1.05 0.060 / 0.070