PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/22-01:28:00 G01 319.5 17.9 4.1 +/- 18.21 9.6 +/- 18.21 0.160 / 0.140 G08 263.4 14.4 9.7 +/- 2.35 24.6 +/- 2.35 0.090 / 0.170 G10 78.0 52.6 7.6 +/- 0.74 9.3 +/- 0.74 0.040 / 0.050 G11 305.6 21.2 7.5 +/- 2.90 16.0 +/- 2.90 0.040 / 0.050 G14 286.2 69.4 8.2 +/- 0.90 8.7 +/- 0.90 0.090 / 0.110 G18 306.2 39.7 7.7 +/- 2.17 11.3 +/- 2.17 0.080 / 0.070 G20 104.1 30.0 7.4 +/- 0.91 12.9 +/- 0.91 0.030 / 0.030 G31 174.9 41.0 9.8 +/- 1.08 14.0 +/- 1.08 0.020 / 0.030 G32 2.9 69.1 7.1 +/- 0.92 7.6 +/- 0.92 0.110 / 0.390