PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/09/16-01:12:50 G08 269.6 19.7 12.5 +/- 2.53 27.6 +/- 2.53 0.120 / 0.230 G10 51.8 60.6 12.9 +/- 0.95 14.6 +/- 0.95 0.100 / 0.160 G11 313.1 16.0 12.6 +/- 2.57 30.6 +/- 2.57 0.040 / 0.030 G14 260.4 65.1 12.0 +/- 0.57 13.1 +/- 0.57 0.040 / 0.030 G18 87.6 39.2 13.2 +/- 0.62 19.4 +/- 0.62 0.090 / 0.380 G21 153.2 18.0 14.6 +/- 2.75 33.8 +/- 2.75 0.090 / 0.340 G24 42.1 14.3 9.9 +/- 1.90 25.0 +/- 1.90 0.110 / 0.300 G27 233.5 18.2 17.1 +/- 2.70 39.4 +/- 2.70 0.150 / 0.330 G31 180.5 24.5 16.0 +/- 1.91 31.7 +/- 1.91 0.040 / 0.060 G32 311.4 75.1 13.9 +/- 0.78 14.3 +/- 0.78 0.040 / 0.050