PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/28-22:42:40 G08 288.1 23.6 8.2 +/- 1.08 16.5 +/- 1.08 0.080 / 0.130 G10 16.0 63.0 7.4 +/- 0.56 8.1 +/- 0.56 0.070 / 0.130 G14 233.0 49.1 12.5 +/- 1.47 16.0 +/- 1.47 0.060 / 0.070 G18 317.6 13.9 7.1 +/- 2.12 18.2 +/- 2.12 0.050 / 0.090 G20 70.2 50.3 8.6 +/- 0.36 10.8 +/- 0.36 0.050 / 0.130 G21 148.2 36.6 8.7 +/- 1.07 13.4 +/- 1.07 0.050 / 0.120 G24 51.0 21.9 6.6 +/- 1.08 14.0 +/- 1.08 0.070 / 0.150 G27 252.0 29.9 9.6 +/- 1.83 16.8 +/- 1.83 0.070 / 0.150 G32 255.3 71.5 9.5 +/- 0.59 10.0 +/- 0.59 0.080 / 0.180