PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/11-02:12:40 G08 309.4 19.4 9.3 +/- 1.04 20.7 +/- 1.04 0.110 / 0.070 G10 327.2 59.1 10.4 +/- 0.63 11.9 +/- 0.63 0.080 / 0.060 G14 217.4 31.2 13.9 +/- 1.79 23.7 +/- 1.79 0.030 / 0.030 G15 46.4 13.9 7.3 +/- 2.55 18.6 +/- 2.55 0.040 / 0.030 G18 33.8 60.8 12.5 +/- 0.71 14.1 +/- 0.71 0.040 / 0.040 G21 132.2 58.3 12.8 +/- 0.38 14.8 +/- 0.38 0.040 / 0.040 G24 77.3 30.6 9.6 +/- 1.02 16.6 +/- 1.02 0.070 / 0.070 G27 274.8 37.8 11.7 +/- 2.07 17.6 +/- 2.07 0.080 / 0.090 G32 222.3 49.5 11.9 +/- 1.53 15.1 +/- 1.53 0.130 / 0.160