PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/12/11-20:12:40 G01 314.4 26.0 7.7 +/- 1.38 14.7 +/- 1.38 0.150 / 0.160 G10 94.0 47.6 8.0 +/- 0.71 10.4 +/- 0.71 0.110 / 0.140 G11 293.6 26.7 7.2 +/- 1.56 13.5 +/- 1.56 0.170 / 0.230 G14 330.7 70.5 7.1 +/- 0.39 7.4 +/- 0.39 0.110 / 0.240 G18 110.6 20.3 10.0 +/- 1.20 21.8 +/- 1.20 0.040 / 0.040 G22 305.3 17.4 8.0 +/- 1.59 18.8 +/- 1.59 0.040 / 0.040 G25 91.6 13.0 12.1 +/- 1.88 31.4 +/- 1.88 0.030 / 0.020 G31 175.3 52.0 10.7 +/- 0.68 13.1 +/- 0.68 0.040 / 0.020 G32 22.3 60.6 7.0 +/- 0.83 7.9 +/- 0.83 0.120 / 0.170