PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/09-02:27:40 G05 47.9 18.7 6.9 +/- 2.49 15.6 +/- 2.49 0.110 / 0.120 G13 80.4 36.5 10.5 +/- 1.01 16.2 +/- 1.01 0.070 / 0.140 G15 130.4 49.8 13.5 +/- 0.47 17.1 +/- 0.47 0.270 / 0.360 G16 316.2 11.7 5.3 +/- 9.51 14.4 +/- 9.51 0.150 / 0.390 G20 246.9 41.1 12.7 +/- 1.68 18.1 +/- 1.68 0.200 / 0.330 G21 309.4 44.2 9.8 +/- 1.24 13.4 +/- 1.24 0.220 / 0.390 G25 201.5 13.8 15.8 +/- 1.85 40.5 +/- 1.85 0.020 / 0.020 G26 289.6 21.1 8.4 +/- 1.51 18.0 +/- 1.51 0.020 / 0.020 G29 152.9 77.4 12.5 +/- 0.34 12.7 +/- 0.34 0.090 / 0.060