PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/04-00:12:30 G08 293.6 23.8 9.1 +/- 1.78 18.3 +/- 1.78 0.060 / 0.130 G10 3.0 62.9 6.8 +/- 0.52 7.5 +/- 0.52 0.070 / 0.090 G14 227.8 43.9 11.0 +/- 3.44 15.1 +/- 3.44 0.050 / 0.090 G20 329.8 59.6 8.5 +/- 0.57 9.7 +/- 0.57 0.060 / 0.090 G21 145.6 43.9 11.2 +/- 1.02 15.3 +/- 1.02 0.060 / 0.080 G24 56.6 25.2 8.0 +/- 0.66 15.5 +/- 0.66 0.070 / 0.120 G27 257.3 32.8 9.5 +/- 0.95 15.7 +/- 0.95 0.060 / 0.120 G32 243.0 67.9 10.2 +/- 0.68 11.0 +/- 0.68 0.060 / 0.110