PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/16-17:57:50 G10 240.4 17.6 12.0 +/- 1.19 28.1 +/- 1.19 0.080 / 0.080 G13 67.3 35.0 9.2 +/- 1.22 14.6 +/- 1.22 0.070 / 0.060 G15 120.2 55.9 10.4 +/- 0.50 12.2 +/- 0.50 0.100 / 0.440 G16 308.2 14.4 7.0 +/- 1.52 17.7 +/- 1.52 0.110 / 0.430 G20 254.4 41.8 9.8 +/- 1.12 13.9 +/- 1.12 0.050 / 0.120 G21 320.4 51.9 10.0 +/- 1.56 12.3 +/- 1.56 0.050 / 0.120 G26 281.3 19.3 7.3 +/- 1.56 16.3 +/- 1.56 0.050 / 0.040 G29 159.3 65.0 9.9 +/- 0.64 10.8 +/- 0.64 0.030 / 0.040