PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/07-01:58:00 G08 276.8 19.6 8.5 +/- 1.21 18.9 +/- 1.21 0.340 / 0.300 G10 53.4 59.0 13.4 +/- 1.04 15.3 +/- 1.04 0.270 / 0.410 G14 254.1 61.9 9.8 +/- 0.62 11.0 +/- 0.62 0.080 / 0.180 G18 314.9 28.0 6.7 +/- 1.50 12.3 +/- 1.50 0.090 / 0.200 G20 90.2 40.1 8.6 +/- 0.53 12.5 +/- 0.53 0.040 / 0.050 G21 154.3 21.4 11.0 +/- 2.33 23.5 +/- 2.33 0.040 / 0.050 G24 42.5 14.2 5.5 +/- 2.97 14.0 +/- 2.97 0.090 / 0.110 G27 236.2 19.9 10.9 +/- 3.42 24.1 +/- 3.42 0.120 / 0.170 G31 178.2 26.1 13.0 +/- 1.71 24.8 +/- 1.71 0.160 / 0.240 G32 314.6 76.1 9.2 +/- 0.63 9.4 +/- 0.63 0.130 / 0.210