PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/01-02:57:30 G08 307.8 20.1 8.7 +/- 1.94 19.1 +/- 1.94 0.040 / 0.020 G10 330.6 59.7 7.9 +/- 0.92 9.0 +/- 0.92 0.030 / 0.050 G14 218.4 33.0 12.7 +/- 1.49 20.9 +/- 1.49 0.050 / 0.040 G15 46.7 12.8 4.2 +/- 2.48 11.0 +/- 2.48 0.040 / 0.050 G18 36.5 60.2 10.4 +/- 2.37 11.8 +/- 2.37 0.070 / 0.070 G21 134.1 56.8 11.6 +/- 0.69 13.5 +/- 0.69 0.060 / 0.090 G24 75.1 30.6 8.3 +/- 1.33 14.4 +/- 1.33 0.050 / 0.070 G27 272.4 37.5 11.8 +/- 2.82 17.8 +/- 2.82 0.070 / 0.090 G32 223.9 51.7 11.2 +/- 1.76 13.9 +/- 1.76 0.090 / 0.170