PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/19-01:27:30 G08 289.7 23.6 7.8 +/- 0.86 15.7 +/- 0.86 0.100 / 0.110 G10 12.5 63.1 5.5 +/- 0.92 6.1 +/- 0.92 0.110 / 0.130 G14 231.6 47.2 9.0 +/- 2.54 11.8 +/- 2.54 0.040 / 0.090 G18 317.6 11.7 -0.1 +/- 18.06 -0.3 +/- 18.06 0.060 / 0.080 G20 358.5 66.0 9.5 +/- 1.26 10.2 +/- 1.26 0.080 / 0.100 G21 147.8 39.4 8.7 +/- 0.95 12.7 +/- 0.95 0.060 / 0.070 G24 52.9 23.4 7.1 +/- 2.50 14.3 +/- 2.50 0.090 / 0.170 G27 252.4 30.6 9.1 +/- 1.62 15.7 +/- 1.62 0.080 / 0.230 G32 253.0 71.4 7.5 +/- 0.61 7.9 +/- 0.61 0.100 / 0.150