PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/05/06-22:58:00 G02 234.1 73.6 15.7 +/- 0.58 16.3 +/- 0.58 0.030 / 0.040 G05 172.2 13.8 20.6 +/- 3.45 52.7 +/- 3.45 0.040 / 0.040 G06 41.5 64.3 13.7 +/- 0.45 15.0 +/- 0.45 0.070 / 0.120 G12 320.5 45.7 11.3 +/- 0.94 15.0 +/- 0.94 0.080 / 0.110 G17 67.9 24.1 12.9 +/- 1.04 25.8 +/- 1.04 0.050 / 0.070 G19 53.6 40.3 14.4 +/- 0.42 20.8 +/- 0.42 0.060 / 0.070 G24 247.9 36.5 17.1 +/- 1.27 26.4 +/- 1.27 0.040 / 0.040