PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/26-20:27:40 G02 356.1 75.4 8.7 +/- 0.68 8.9 +/- 0.68 0.100 / 0.210 G05 161.6 38.2 13.3 +/- 0.68 20.0 +/- 0.68 0.110 / 0.280 G06 42.4 36.4 7.5 +/- 0.95 11.6 +/- 0.95 0.090 / 0.120 G12 305.0 73.3 6.7 +/- 0.56 7.0 +/- 0.56 0.060 / 0.100 G17 88.5 10.2 8.5 +/- 2.54 23.7 +/- 2.54 0.040 / 0.050 G19 79.2 23.3 8.7 +/- 1.27 17.7 +/- 1.27 0.030 / 0.040 G24 225.1 19.5 13.5 +/- 2.14 30.0 +/- 2.14 0.030 / 0.040 G25 316.1 32.3 8.0 +/- 0.80 13.3 +/- 0.80 0.030 / 0.050 G29 289.5 12.6 12.1 +/- 1.11 31.7 +/- 1.11 0.070 / 0.380