PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/09-18:13:10 G05 48.5 19.8 10.8 +/- 1.97 23.9 +/- 1.97 0.040 / 0.070 G10 236.6 13.3 8.7 +/- 13.31 22.5 +/- 13.31 0.050 / 0.050 G13 74.4 36.0 11.8 +/- 1.29 18.3 +/- 1.29 0.120 / 0.390 G15 130.1 52.3 12.4 +/- 0.34 15.2 +/- 0.34 0.150 / 0.310 G16 313.2 12.9 7.8 +/- 1.66 20.3 +/- 1.66 0.070 / 0.090 G20 248.8 37.5 11.4 +/- 1.90 17.2 +/- 1.90 0.080 / 0.090 G21 314.6 48.0 10.3 +/- 0.99 13.3 +/- 0.99 0.030 / 0.040 G26 286.9 20.2 8.6 +/- 2.21 18.8 +/- 2.21 0.030 / 0.040 G29 155.7 71.7 13.0 +/- 0.39 13.6 +/- 0.39 0.190 / 0.100