PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/09/08-00:13:10 G08 311.2 18.4 25.1 +/- 1.57 57.5 +/- 1.57 0.060 / 0.110 G10 323.6 58.4 25.5 +/- 0.54 29.4 +/- 0.54 0.060 / 0.100 G14 216.3 29.2 27.5 +/- 1.73 49.1 +/- 1.73 0.030 / 0.050 G15 46.2 14.5 17.2 +/- 2.92 43.3 +/- 2.92 0.040 / 0.050 G18 31.7 61.1 23.7 +/- 0.56 26.7 +/- 0.56 0.050 / 0.060 G21 130.1 59.4 26.3 +/- 0.55 30.0 +/- 0.55 0.060 / 0.060 G24 79.7 30.6 24.2 +/- 0.34 41.9 +/- 0.34 0.080 / 0.180 G27 277.5 38.0 25.9 +/- 1.79 38.9 +/- 1.79 0.090 / 0.160 G32 220.8 46.4 27.0 +/- 1.27 35.7 +/- 1.27 0.050 / 0.080