PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/09/01-00:43:00 G08 311.0 18.5 9.7 +/- 2.62 22.2 +/- 2.62 0.060 / 0.080 G10 323.9 58.4 11.6 +/- 0.65 13.3 +/- 0.65 0.080 / 0.090 G14 216.4 29.4 15.1 +/- 1.04 26.7 +/- 1.04 0.030 / 0.040 G15 46.2 14.6 8.1 +/- 1.90 20.4 +/- 1.90 0.030 / 0.050 G18 31.7 61.2 10.0 +/- 0.37 11.2 +/- 0.37 0.030 / 0.050 G21 130.3 59.4 14.0 +/- 0.56 16.0 +/- 0.56 0.040 / 0.040 G24 79.5 30.6 11.0 +/- 0.53 19.0 +/- 0.53 0.040 / 0.050 G27 277.3 38.0 12.3 +/- 0.98 18.5 +/- 0.98 0.040 / 0.050 G32 220.9 46.8 15.5 +/- 1.20 20.3 +/- 1.20 0.090 / 0.200