PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/10-23:27:10 G02 223.9 68.5 11.4 +/- 0.82 12.2 +/- 0.82 0.030 / 0.070 G06 45.5 66.8 10.3 +/- 0.48 11.1 +/- 0.48 0.030 / 0.060 G12 320.7 43.4 10.8 +/- 1.00 14.8 +/- 1.00 0.040 / 0.060 G17 61.7 30.6 10.3 +/- 0.80 17.8 +/- 0.80 0.030 / 0.050 G19 46.5 45.4 10.6 +/- 1.07 14.2 +/- 1.07 0.060 / 0.110 G24 255.5 39.2 13.2 +/- 0.63 19.5 +/- 0.63 0.070 / 0.100