PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/08-23:43:10 G05 51.6 13.3 8.3 +/- 2.26 21.5 +/- 2.26 0.130 / 0.310 G10 242.2 18.0 15.8 +/- 2.08 36.4 +/- 2.08 0.090 / 0.300 G13 66.1 35.9 10.1 +/- 1.31 15.8 +/- 1.31 0.080 / 0.120 G15 112.2 56.7 14.1 +/- 0.39 16.5 +/- 0.39 0.110 / 0.140 G16 307.8 13.7 8.5 +/- 1.76 21.8 +/- 1.76 0.180 / 0.190 G18 254.3 47.8 12.5 +/- 3.57 16.2 +/- 3.57 0.130 / 0.120 G20 36.2 56.8 11.4 +/- 0.68 13.4 +/- 0.68 0.050 / 0.060 G21 321.5 53.0 11.5 +/- 0.84 14.0 +/- 0.84 0.040 / 0.040 G26 280.3 18.7 11.3 +/- 1.15 25.8 +/- 1.15 0.030 / 0.040 G29 160.1 59.5 13.9 +/- 0.58 15.9 +/- 0.58 0.040 / 0.040