PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/16-01:43:00 G08 267.6 16.2 10.1 +/- 2.74 24.3 +/- 2.74 0.040 / 0.060 G10 71.1 54.8 9.4 +/- 0.33 11.2 +/- 0.33 0.040 / 0.070 G11 309.0 19.1 8.6 +/- 1.23 19.5 +/- 1.23 0.190 / 0.360 G14 274.9 67.7 9.0 +/- 0.81 9.6 +/- 0.81 0.200 / 0.430 G18 309.6 36.3 9.0 +/- 3.48 14.0 +/- 3.48 0.030 / 0.040 G20 100.1 33.2 9.4 +/- 1.10 15.5 +/- 1.10 0.050 / 0.040 G21 156.0 11.9 9.9 +/- 1.76 26.6 +/- 1.76 0.120 / 0.290 G27 228.7 13.3 12.7 +/- 3.12 32.9 +/- 3.12 0.150 / 0.370 G31 176.0 36.4 12.7 +/- 1.19 19.7 +/- 1.19 0.200 / 0.470 G32 351.8 72.0 9.5 +/- 0.54 9.9 +/- 0.54 0.180 / 0.340