PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/14-01:27:50 G08 277.8 19.7 9.6 +/- 2.12 21.3 +/- 2.12 0.050 / 0.080 G10 52.2 59.2 8.6 +/- 1.08 9.8 +/- 1.08 0.060 / 0.090 G14 252.8 61.3 9.5 +/- 0.66 10.7 +/- 0.66 0.040 / 0.030 G18 315.1 27.5 7.1 +/- 1.40 13.2 +/- 1.40 0.040 / 0.020 G20 89.6 40.3 7.8 +/- 0.70 11.2 +/- 0.70 0.120 / 0.160 G21 154.2 22.0 10.2 +/- 0.74 21.3 +/- 0.74 0.120 / 0.130 G24 42.8 14.7 6.5 +/- 2.62 16.3 +/- 2.62 0.050 / 0.060 G27 236.6 20.3 12.0 +/- 2.85 26.1 +/- 2.85 0.050 / 0.050 G31 178.3 25.5 4.0 +/- 2.03 7.7 +/- 2.03 0.260 / 0.360 G32 312.8 76.2 8.8 +/- 0.34 9.0 +/- 0.34 0.140 / 0.310