PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/16-23:58:00 G10 337.5 60.9 7.3 +/- 0.81 8.2 +/- 0.81 0.050 / 0.060 G14 218.3 30.4 9.9 +/- 2.50 17.1 +/- 2.50 0.090 / 0.060 G20 40.2 59.7 7.1 +/- 0.65 8.1 +/- 0.65 0.110 / 0.240 G21 135.5 56.9 10.4 +/- 0.52 12.1 +/- 0.52 0.100 / 0.210 G24 73.6 30.3 7.7 +/- 1.59 13.4 +/- 1.59 0.030 / 0.040 G27 274.0 37.5 9.0 +/- 2.47 13.6 +/- 2.47 0.040 / 0.050 G32 223.6 53.1 9.5 +/- 1.94 11.6 +/- 1.94 0.030 / 0.030