PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/09/07-01:42:50 G08 272.7 20.8 14.7 +/- 2.13 31.7 +/- 2.13 0.040 / 0.030 G10 45.4 61.5 11.9 +/- 1.07 13.3 +/- 1.07 0.030 / 0.030 G11 314.7 14.0 9.9 +/- 1.77 25.1 +/- 1.77 0.070 / 0.210 G14 254.4 63.1 13.2 +/- 0.77 14.6 +/- 0.77 0.100 / 0.220 G18 84.2 41.3 12.0 +/- 0.87 17.0 +/- 0.87 0.240 / 0.170 G21 152.6 21.3 13.4 +/- 2.12 28.4 +/- 2.12 0.170 / 0.180 G24 43.7 16.5 10.1 +/- 2.28 24.3 +/- 2.28 0.110 / 0.220 G27 235.9 20.2 15.9 +/- 3.11 34.8 +/- 3.11 0.100 / 0.140 G31 180.8 21.8 16.0 +/- 1.05 33.7 +/- 1.05 0.180 / 0.430 G32 299.8 75.2 11.9 +/- 0.69 12.3 +/- 0.69 0.370 / 0.250