PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/07/08-04:12:50 G08 269.8 18.0 10.1 +/- 2.02 23.3 +/- 2.02 0.210 / 0.260 G10 63.4 57.0 6.1 +/- 0.79 7.2 +/- 0.79 0.170 / 0.260 G14 266.1 66.2 6.2 +/- 0.92 6.7 +/- 0.92 0.040 / 0.030 G18 312.2 33.0 6.6 +/- 1.28 10.9 +/- 1.28 0.040 / 0.030 G20 95.7 36.7 6.1 +/- 0.92 9.4 +/- 0.92 0.190 / 0.380 G21 155.3 15.7 7.1 +/- 2.86 17.4 +/- 2.86 0.210 / 0.510 G24 39.9 9.8 5.0 +/- 1.32 13.9 +/- 1.32 0.060 / 0.040 G27 232.2 16.2 9.3 +/- 1.51 22.4 +/- 1.51 0.060 / 0.050 G31 177.2 31.5 8.8 +/- 1.82 14.9 +/- 1.82 0.150 / 0.200 G32 333.0 74.5 6.7 +/- 0.63 7.0 +/- 0.63 0.110 / 0.210