PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/15-03:58:10 G08 287.5 22.9 10.0 +/- 2.06 20.5 +/- 2.06 0.110 / 0.160 G10 20.2 63.0 7.2 +/- 0.48 7.9 +/- 0.48 0.100 / 0.120 G14 234.9 48.9 10.1 +/- 1.06 12.9 +/- 1.06 0.060 / 0.100 G18 317.6 14.4 6.1 +/- 0.88 15.3 +/- 0.88 0.050 / 0.070 G20 55.9 59.9 16.1 +/- 0.80 18.3 +/- 0.80 0.070 / 0.150 G21 149.4 35.6 8.7 +/- 1.09 13.6 +/- 1.09 0.070 / 0.180 G24 50.4 22.0 5.9 +/- 1.18 12.5 +/- 1.18 0.040 / 0.100 G27 248.6 28.6 9.6 +/- 1.55 17.3 +/- 1.55 0.050 / 0.110 G31 181.2 13.0 10.7 +/- 3.60 27.8 +/- 3.60 0.030 / 0.030 G32 263.6 73.7 7.7 +/- 0.63 8.0 +/- 0.63 0.030 / 0.040