PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/05/08-23:43:00 G02 353.2 76.8 9.0 +/- 0.86 9.2 +/- 0.86 0.070 / 0.110 G05 162.3 36.1 14.3 +/- 0.66 22.3 +/- 0.66 0.090 / 0.120 G06 41.1 40.5 7.3 +/- 0.57 10.5 +/- 0.57 0.030 / 0.040 G12 310.3 70.2 8.0 +/- 0.58 8.4 +/- 0.58 0.040 / 0.030 G19 76.7 25.4 10.8 +/- 0.96 21.0 +/- 0.96 0.130 / 0.170 G24 226.1 21.1 13.7 +/- 1.35 29.3 +/- 1.35 0.090 / 0.170 G25 316.6 30.9 9.1 +/- 0.90 15.7 +/- 0.90 0.040 / 0.040 G29 288.5 12.7 12.5 +/- 1.67 32.7 +/- 1.67 0.060 / 0.030