PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/09/28-22:43:00 G08 313.2 17.2 14.3 +/- 2.60 33.7 +/- 2.60 0.030 / 0.030 G10 319.6 57.6 11.1 +/- 0.75 12.9 +/- 0.75 0.030 / 0.030 G14 215.3 26.8 14.7 +/- 2.81 27.6 +/- 2.81 0.040 / 0.040 G15 45.9 15.7 9.7 +/- 1.44 23.6 +/- 1.44 0.040 / 0.050 G18 28.6 61.7 11.8 +/- 1.85 13.2 +/- 1.85 0.050 / 0.090 G21 127.5 60.7 13.9 +/- 0.50 15.6 +/- 0.50 0.060 / 0.110 G24 82.4 30.4 11.2 +/- 1.20 19.4 +/- 1.20 0.060 / 0.060 G27 280.6 38.1 14.6 +/- 2.85 21.9 +/- 2.85 0.080 / 0.070 G32 219.2 43.2 14.7 +/- 1.96 20.3 +/- 1.96 0.080 / 0.220