PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/04/26-06:57:40 G10 267.1 38.0 7.2 +/- 1.27 10.8 +/- 1.27 0.050 / 0.040 G13 42.0 18.5 3.9 +/- 2.66 8.8 +/- 2.66 0.050 / 0.050 G15 58.6 48.1 5.6 +/- 0.46 7.2 +/- 0.46 0.260 / 0.390 G16 278.5 12.0 4.6 +/- 2.19 12.3 +/- 2.19 0.320 / 0.490 G20 19.1 63.6 5.9 +/- 0.57 6.5 +/- 0.57 0.180 / 0.210 G21 3.2 72.0 5.7 +/- 0.90 5.9 +/- 0.90 0.100 / 0.160 G24 120.3 14.2 6.3 +/- 1.86 15.9 +/- 1.86 0.140 / 0.230 G27 318.3 19.4 4.3 +/- 1.27 9.5 +/- 1.27 0.140 / 0.170 G29 168.1 31.2 6.5 +/- 1.81 11.1 +/- 1.81 0.040 / 0.030 G32 204.0 10.6 -15.1 +/- 14.86 -41.5 +/- 14.86 0.040 / 0.030