PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/09/14-02:12:50 G10 91.4 49.1 6.2 +/- 0.97 7.8 +/- 0.97 0.050 / 0.030 G11 293.4 27.7 4.8 +/- 1.56 8.9 +/- 1.56 0.050 / 0.040 G14 329.7 70.9 4.2 +/- 0.78 4.5 +/- 0.78 0.130 / 0.210 G18 108.5 23.5 5.9 +/- 1.74 11.9 +/- 1.74 0.240 / 0.210 G22 304.4 16.2 4.8 +/- 1.99 11.6 +/- 1.99 0.050 / 0.040 G25 90.5 12.1 6.0 +/- 2.91 16.0 +/- 2.91 0.040 / 0.030 G31 175.9 49.9 6.9 +/- 0.66 8.8 +/- 0.66 0.040 / 0.040 G32 16.8 63.1 4.4 +/- 0.55 4.8 +/- 0.55 0.040 / 0.040