PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/04/29-00:27:40 G02 358.9 75.3 6.7 +/- 0.60 6.9 +/- 0.60 0.110 / 0.190 G05 161.4 37.9 12.2 +/- 1.03 18.4 +/- 1.03 0.160 / 0.300 G06 41.5 39.3 5.4 +/- 0.62 7.9 +/- 0.62 0.030 / 0.030 G12 307.2 71.9 7.1 +/- 1.04 7.5 +/- 1.04 0.030 / 0.030 G19 78.3 24.5 9.5 +/- 0.65 18.9 +/- 0.65 0.070 / 0.090 G24 224.6 19.7 10.8 +/- 1.28 23.8 +/- 1.28 0.070 / 0.090 G25 316.1 32.8 7.4 +/- 2.56 12.2 +/- 2.56 0.050 / 0.040 G29 290.1 14.3 8.9 +/- 2.44 22.5 +/- 2.44 0.030 / 0.040