PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/30-01:27:40 G02 229.1 71.6 7.7 +/- 0.40 8.1 +/- 0.40 0.080 / 0.080 G05 173.3 11.6 4.6 +/- 19.13 12.4 +/- 19.13 0.070 / 0.090 G06 43.3 69.0 7.0 +/- 0.62 7.4 +/- 0.62 0.040 / 0.050 G12 320.1 43.2 6.7 +/- 0.55 9.3 +/- 0.55 0.040 / 0.050 G17 66.4 24.6 7.0 +/- 1.57 13.8 +/- 1.57 0.030 / 0.050 G19 50.5 42.4 6.6 +/- 1.17 9.2 +/- 1.17 0.040 / 0.050 G24 249.7 37.8 8.7 +/- 1.42 13.1 +/- 1.42 0.190 / 0.320