PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/09/10-00:27:40 G08 302.2 22.0 7.6 +/- 1.65 15.9 +/- 1.65 0.060 / 0.090 G10 343.0 61.4 8.2 +/- 0.44 9.2 +/- 0.44 0.050 / 0.100 G14 222.1 38.6 14.1 +/- 1.47 21.0 +/- 1.47 0.030 / 0.060 G18 48.3 56.7 9.4 +/- 0.61 11.0 +/- 0.61 0.040 / 0.070 G21 139.5 49.6 10.8 +/- 1.16 13.7 +/- 1.16 0.030 / 0.030 G24 68.1 29.9 10.8 +/- 0.93 19.0 +/- 0.93 0.040 / 0.040 G27 264.5 35.9 11.7 +/- 1.67 18.2 +/- 1.67 0.070 / 0.100 G32 229.8 56.0 12.5 +/- 0.45 14.7 +/- 0.45 0.070 / 0.100