PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/17-02:43:00 G08 284.8 23.3 9.1 +/- 5.23 18.6 +/- 5.23 0.090 / 0.100 G10 19.3 63.2 6.7 +/- 0.41 7.4 +/- 0.41 0.100 / 0.130 G14 237.1 53.9 10.5 +/- 1.06 12.7 +/- 1.06 0.040 / 0.030 G18 70.3 48.7 -7.9 +/- 44.48 -10.1 +/- 44.48 0.050 / 0.040 G21 148.9 33.6 9.4 +/- 1.43 15.4 +/- 1.43 0.050 / 0.110 G24 51.7 23.6 7.1 +/- 0.68 14.4 +/- 0.68 0.050 / 0.120 G27 246.1 27.8 11.1 +/- 1.46 20.4 +/- 1.46 0.070 / 0.130 G31 182.8 11.5 4.6 +/- 16.78 12.3 +/- 16.78 0.080 / 0.130 G32 259.7 70.9 4.2 +/- 11.17 4.4 +/- 11.17 0.050 / 0.080