PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/04/09-02:57:30 G02 10.9 71.5 7.3 +/- 0.48 7.6 +/- 0.48 0.020 / 0.050 G05 158.5 42.6 10.5 +/- 0.82 14.6 +/- 0.82 0.030 / 0.030 G06 44.0 33.3 5.6 +/- 1.32 9.2 +/- 1.32 0.030 / 0.070 G12 289.7 77.5 8.4 +/- 0.70 8.5 +/- 0.70 0.030 / 0.050 G17 91.1 10.1 8.5 +/- 1.27 23.5 +/- 1.27 0.060 / 0.090 G19 82.1 23.0 7.7 +/- 1.68 15.7 +/- 1.68 0.090 / 0.100 G24 222.7 17.2 10.1 +/- 3.20 23.8 +/- 3.20 0.150 / 0.200 G25 315.4 35.4 7.7 +/- 0.86 12.2 +/- 0.86 0.200 / 0.190 G29 292.1 13.5 9.8 +/- 2.40 25.3 +/- 2.40 0.070 / 0.070