PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/09/14-02:27:30 G10 99.9 44.6 5.5 +/- 0.66 7.5 +/- 0.66 0.040 / 0.040 G11 286.0 29.0 6.8 +/- 0.60 12.2 +/- 0.60 0.040 / 0.030 G14 348.9 68.7 4.6 +/- 0.92 4.9 +/- 0.92 0.100 / 0.210 G18 113.6 18.6 5.9 +/- 1.12 13.3 +/- 1.12 0.090 / 0.190 G22 307.4 21.3 7.3 +/- 3.08 15.5 +/- 3.08 0.030 / 0.030 G25 84.1 14.6 5.3 +/- 1.73 13.2 +/- 1.73 0.030 / 0.030 G31 173.5 57.6 6.5 +/- 0.58 7.5 +/- 0.58 0.030 / 0.030 G32 26.6 58.2 3.9 +/- 0.93 4.5 +/- 0.93 0.030 / 0.040