PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/28-00:43:00 G08 316.6 14.8 8.9 +/- 3.57 22.2 +/- 3.57 0.040 / 0.050 G10 311.2 55.5 9.7 +/- 0.54 11.5 +/- 0.54 0.030 / 0.040 G14 213.2 22.4 17.8 +/- 1.16 36.8 +/- 1.16 0.060 / 0.110 G15 45.6 21.0 8.6 +/- 1.48 18.5 +/- 1.48 0.070 / 0.120 G18 17.4 63.8 10.0 +/- 0.70 11.0 +/- 0.70 0.040 / 0.050 G20 78.6 11.1 10.5 +/- 3.93 28.5 +/- 3.93 0.040 / 0.050 G21 119.9 66.2 13.7 +/- 0.93 14.9 +/- 0.93 0.100 / 0.300 G24 88.3 29.6 11.9 +/- 0.87 21.0 +/- 0.87 0.110 / 0.290 G27 287.0 37.8 11.1 +/- 1.19 16.7 +/- 1.19 0.050 / 0.090 G32 216.0 39.7 13.6 +/- 1.23 19.9 +/- 1.23 0.050 / 0.090