PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/27-00:13:10 G05 47.5 19.6 6.9 +/- 1.15 15.2 +/- 1.15 0.040 / 0.100 G10 233.4 10.6 -9.8 +/- 40.80 -26.9 +/- 40.80 0.050 / 0.100 G13 80.1 35.5 9.7 +/- 0.67 15.2 +/- 0.67 0.150 / 0.260 G15 128.9 49.8 12.3 +/- 1.37 15.5 +/- 1.37 0.200 / 0.310 G20 244.6 33.6 13.1 +/- 1.58 21.3 +/- 1.58 0.220 / 0.290 G21 309.5 44.0 9.3 +/- 1.60 12.7 +/- 1.60 0.250 / 0.350 G25 201.8 14.9 11.7 +/- 7.23 29.1 +/- 7.23 0.050 / 0.150 G26 292.7 20.0 11.2 +/- 2.18 24.6 +/- 2.18 0.050 / 0.120 G29 146.8 75.6 11.5 +/- 0.62 11.8 +/- 0.62 0.060 / 0.060