PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/24-01:58:00 G08 292.7 23.5 7.3 +/- 1.31 14.8 +/- 1.31 0.090 / 0.130 G10 2.7 63.0 8.9 +/- 1.28 9.9 +/- 1.28 0.040 / 0.090 G14 229.4 47.3 13.0 +/- 2.34 17.0 +/- 2.34 0.040 / 0.020 G18 60.9 52.5 9.9 +/- 0.63 12.1 +/- 0.63 0.050 / 0.030 G21 145.4 40.9 12.1 +/- 0.60 17.4 +/- 0.60 0.130 / 0.090 G24 58.4 27.1 8.6 +/- 1.16 16.0 +/- 1.16 0.100 / 0.100 G27 253.7 31.9 11.5 +/- 2.79 19.3 +/- 2.79 0.090 / 0.080 G32 243.0 65.0 9.3 +/- 0.47 10.2 +/- 0.47 0.090 / 0.090