PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/30-17:58:10 G10 262.9 36.0 6.9 +/- 0.66 10.8 +/- 0.66 0.090 / 0.190 G13 43.8 21.0 5.7 +/- 0.97 12.2 +/- 0.97 0.100 / 0.200 G15 67.0 54.3 6.4 +/- 0.75 7.7 +/- 0.75 0.040 / 0.050 G16 283.0 13.3 7.0 +/- 2.51 18.1 +/- 2.51 0.040 / 0.040 G20 290.3 58.5 7.7 +/- 0.92 8.8 +/- 0.92 0.110 / 0.310 G21 357.5 69.9 7.0 +/- 0.79 7.4 +/- 0.79 0.140 / 0.300 G24 120.3 12.3 8.0 +/- 1.91 21.3 +/- 1.91 0.090 / 0.310 G27 320.9 14.2 5.9 +/- 3.18 14.9 +/- 3.18 0.080 / 0.390 G29 167.0 35.2 8.7 +/- 1.53 13.7 +/- 1.53 0.070 / 0.230