PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/16-02:27:50 G02 231.4 72.8 5.0 +/- 0.27 5.2 +/- 0.27 0.050 / 0.060 G05 173.0 12.5 6.8 +/- 2.87 17.8 +/- 2.87 0.080 / 0.080 G06 42.2 68.6 4.6 +/- 0.55 4.9 +/- 0.55 0.030 / 0.050 G12 320.4 44.5 3.5 +/- 0.37 4.7 +/- 0.37 0.040 / 0.050 G17 67.6 23.6 4.1 +/- 0.78 8.2 +/- 0.78 0.210 / 0.260 G19 51.6 41.8 4.0 +/- 1.36 5.6 +/- 1.36 0.190 / 0.250 G24 247.9 37.2 6.5 +/- 1.33 9.9 +/- 1.33 0.030 / 0.030