PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/23-22:27:40 G01 316.4 23.5 6.3 +/- 1.96 12.6 +/- 1.96 0.120 / 0.250 G10 90.0 48.7 8.2 +/- 0.44 10.5 +/- 0.44 0.150 / 0.380 G11 295.4 26.4 7.2 +/- 1.59 13.7 +/- 1.59 0.100 / 0.160 G14 318.9 71.1 8.3 +/- 0.79 8.7 +/- 0.79 0.110 / 0.150 G18 295.6 46.3 4.9 +/- 1.73 6.5 +/- 1.73 0.040 / 0.050 G20 111.0 24.1 10.3 +/- 2.82 20.6 +/- 2.82 0.050 / 0.050 G22 304.0 14.5 5.3 +/- 3.20 13.3 +/- 3.20 0.160 / 0.400 G25 91.7 11.2 -13.7 +/- 30.18 -37.2 +/- 30.18 0.170 / 0.580 G31 175.0 48.9 8.9 +/- 1.21 11.4 +/- 1.21 0.080 / 0.180 G32 20.0 62.2 7.7 +/- 1.12 8.6 +/- 1.12 0.070 / 0.180