PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/23-14:43:00 G02 11.7 69.1 5.8 +/- 0.80 6.2 +/- 0.80 0.030 / 0.070 G05 160.0 45.1 9.0 +/- 0.65 12.1 +/- 0.65 0.040 / 0.060 G06 45.8 27.5 3.8 +/- 1.01 7.0 +/- 1.01 0.160 / 0.350 G12 253.8 80.6 6.6 +/- 0.52 6.6 +/- 0.52 0.140 / 0.390 G19 87.0 17.4 6.8 +/- 0.96 15.9 +/- 0.96 0.030 / 0.030 G24 220.2 13.9 9.5 +/- 2.94 24.1 +/- 2.94 0.020 / 0.030 G25 312.8 39.8 4.9 +/- 1.16 7.1 +/- 1.16 0.090 / 0.240 G29 295.0 16.3 5.4 +/- 1.73 13.0 +/- 1.73 0.120 / 0.280