PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/16-04:43:00 G08 265.4 17.2 10.4 +/- 2.62 24.6 +/- 2.62 0.170 / 0.200 G10 65.2 57.4 5.9 +/- 0.38 6.9 +/- 0.38 0.240 / 0.280 G11 310.0 18.5 7.5 +/- 1.42 17.0 +/- 1.42 0.040 / 0.070 G14 268.2 65.3 7.0 +/- 0.93 7.7 +/- 0.93 0.040 / 0.060 G18 311.3 33.3 7.8 +/- 1.58 12.8 +/- 1.58 0.040 / 0.040 G20 89.2 48.4 8.1 +/- 0.64 10.4 +/- 0.64 0.030 / 0.030 G21 155.3 14.1 7.6 +/- 2.08 19.3 +/- 2.08 0.160 / 0.490 G27 230.3 14.5 11.3 +/- 2.53 28.6 +/- 2.53 0.160 / 0.530 G31 176.1 34.4 9.7 +/- 1.01 15.6 +/- 1.01 0.130 / 0.230 G32 352.4 72.4 7.5 +/- 0.39 7.8 +/- 0.39 0.130 / 0.270