PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/10/14-06:13:10 G03 187.4 10.8 5.9 +/- 3.18 16.1 +/- 3.18 0.030 / 0.060 G07 305.7 46.2 5.8 +/- 0.95 7.7 +/- 0.95 0.030 / 0.050 G08 128.0 39.4 7.9 +/- 0.90 11.7 +/- 0.90 0.230 / 0.500 G09 308.7 78.0 5.6 +/- 0.46 5.7 +/- 0.46 0.190 / 0.580 G16 41.5 30.9 2.8 +/- 0.86 4.8 +/- 0.86 0.040 / 0.030 G23 142.0 68.1 6.7 +/- 0.76 7.1 +/- 0.76 0.020 / 0.030 G27 80.8 36.7 5.7 +/- 0.69 8.7 +/- 0.69 0.060 / 0.110 G28 223.1 11.3 -5.8 +/- 13.67 -15.7 +/- 13.67 0.060 / 0.140 G30 283.6 20.1 3.4 +/- 1.85 7.4 +/- 1.85 0.060 / 0.090