PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/08-20:57:40 G10 275.9 44.2 10.7 +/- 0.99 14.6 +/- 0.99 0.040 / 0.040 G13 38.7 11.5 6.8 +/- 11.90 18.4 +/- 11.90 0.060 / 0.040 G15 53.3 44.0 9.3 +/- 0.93 12.8 +/- 0.93 0.540 / 0.580 G20 314.4 63.3 9.2 +/- 0.66 10.2 +/- 0.66 0.370 / 0.430 G21 21.7 75.3 10.4 +/- 0.52 10.7 +/- 0.52 0.040 / 0.060 G24 115.8 18.3 11.8 +/- 1.19 27.2 +/- 1.19 0.030 / 0.060 G27 315.2 24.0 8.3 +/- 1.47 16.6 +/- 1.47 0.290 / 0.240 G29 167.9 24.3 13.6 +/- 2.83 27.1 +/- 2.83 0.130 / 0.170 G32 205.1 15.8 16.3 +/- 1.84 39.9 +/- 1.84 0.080 / 0.070