PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/09/25-23:28:10 G08 299.5 22.6 12.0 +/- 0.87 24.9 +/- 0.87 0.030 / 0.030 G10 349.1 62.1 11.1 +/- 0.55 12.4 +/- 0.55 0.040 / 0.030 G14 224.2 41.2 13.5 +/- 2.31 19.2 +/- 2.31 0.050 / 0.070 G18 53.2 55.0 12.9 +/- 1.06 15.3 +/- 1.06 0.060 / 0.080 G21 141.5 46.1 13.8 +/- 0.41 18.4 +/- 0.41 0.040 / 0.050 G24 64.9 29.2 12.4 +/- 0.80 22.1 +/- 0.80 0.040 / 0.040 G27 261.0 34.9 16.0 +/- 2.74 25.4 +/- 2.74 0.070 / 0.100 G32 233.1 58.0 11.2 +/- 1.90 12.9 +/- 1.90 0.080 / 0.080