PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/17-22:43:10 G05 47.7 22.3 8.0 +/- 1.11 16.8 +/- 1.11 0.050 / 0.080 G10 235.4 10.3 -18.2 +/- 17.20 -50.3 +/- 17.20 0.060 / 0.070 G13 79.5 37.5 9.3 +/- 0.96 14.1 +/- 0.96 0.200 / 0.330 G15 128.9 50.8 11.6 +/- 1.14 14.5 +/- 1.14 0.150 / 0.320 G16 317.2 10.5 -2.8 +/- 18.91 -7.8 +/- 18.91 0.030 / 0.030 G18 243.8 40.2 12.5 +/- 1.45 18.1 +/- 1.45 0.030 / 0.040 G20 28.0 66.9 10.2 +/- 0.74 11.0 +/- 0.74 0.090 / 0.150 G21 311.5 46.4 9.8 +/- 1.10 13.0 +/- 1.10 0.080 / 0.150 G26 291.3 19.8 9.3 +/- 1.56 20.7 +/- 1.56 0.040 / 0.050 G29 153.2 71.1 10.5 +/- 0.56 11.0 +/- 0.56 0.040 / 0.040