PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/08-21:12:50 G02 71.2 24.4 10.4 +/- 0.98 20.7 +/- 0.98 0.030 / 0.060 G05 46.1 46.8 10.1 +/- 0.70 13.2 +/- 0.70 0.030 / 0.050 G12 179.0 14.0 12.7 +/- 2.64 32.4 +/- 2.64 0.110 / 0.280 G13 114.4 25.5 12.2 +/- 1.29 23.5 +/- 1.29 0.070 / 0.320 G15 157.8 23.7 14.6 +/- 1.80 29.4 +/- 1.80 0.070 / 0.130 G20 226.2 -12.9 -6.5 +/- 24.09 -17.1 +/- 24.09 0.070 / 0.160 G21 283.8 25.9 14.3 +/- 1.83 27.4 +/- 1.83 0.060 / 0.100 G25 218.2 38.8 13.2 +/- 1.70 19.7 +/- 1.70 0.070 / 0.120 G26 316.2 13.3 12.0 +/- 2.36 31.1 +/- 2.36 0.040 / 0.040 G29 337.7 69.0 12.0 +/- 0.89 12.8 +/- 0.89 0.030 / 0.030