PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/08-06:27:50 G08 263.3 15.8 9.1 +/- 2.80 22.2 +/- 2.80 0.170 / 0.240 G10 72.7 54.5 5.4 +/- 0.57 6.4 +/- 0.57 0.140 / 0.280 G11 307.2 20.6 3.0 +/- 2.52 6.6 +/- 2.52 0.040 / 0.030 G14 281.3 69.5 5.9 +/- 0.66 6.2 +/- 0.66 0.040 / 0.040 G18 308.4 37.8 3.3 +/- 0.69 4.9 +/- 0.69 0.040 / 0.050 G20 101.1 32.6 4.9 +/- 2.14 8.2 +/- 2.14 0.040 / 0.050 G27 228.4 12.6 5.6 +/- 2.25 14.7 +/- 2.25 0.220 / 0.330 G31 176.4 36.9 6.6 +/- 0.93 10.2 +/- 0.93 0.150 / 0.310 G32 347.1 72.2 4.3 +/- 0.45 4.5 +/- 0.45 0.050 / 0.080