PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/04-03:12:30 G10 300.2 52.7 10.9 +/- 0.98 13.3 +/- 0.98 0.080 / 0.110 G14 211.2 10.9 -5.8 +/- 22.54 -15.8 +/- 22.54 0.060 / 0.090 G15 46.1 28.1 6.1 +/- 1.29 11.2 +/- 1.29 0.180 / 0.560 G20 338.4 64.4 10.8 +/- 1.21 11.9 +/- 1.21 0.200 / 0.470 G21 100.7 73.7 11.4 +/- 0.65 11.8 +/- 0.65 0.040 / 0.040 G24 94.4 27.1 10.8 +/- 1.44 20.2 +/- 1.44 0.040 / 0.040 G27 298.3 35.0 12.3 +/- 1.19 19.5 +/- 1.19 0.040 / 0.040 G32 211.1 35.7 13.2 +/- 2.00 20.7 +/- 2.00 0.050 / 0.040