PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/17-23:28:10 G10 249.8 25.1 11.9 +/- 1.68 23.2 +/- 1.68 0.040 / 0.060 G13 55.5 31.8 8.7 +/- 0.48 14.7 +/- 0.48 0.040 / 0.050 G15 91.1 58.2 9.8 +/- 0.25 11.3 +/- 0.25 0.120 / 0.400 G16 298.7 14.4 6.3 +/- 1.53 16.0 +/- 1.53 0.130 / 0.290 G18 267.1 54.7 10.8 +/- 0.91 12.9 +/- 0.91 0.070 / 0.140 G20 42.8 48.3 8.5 +/- 0.43 11.0 +/- 0.43 0.100 / 0.160 G21 332.7 59.9 9.6 +/- 1.17 11.0 +/- 1.17 0.030 / 0.060 G26 271.0 15.7 9.5 +/- 2.64 23.3 +/- 2.64 0.030 / 0.050 G29 163.5 48.1 12.1 +/- 1.06 15.6 +/- 1.06 0.050 / 0.060