PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/08-01:57:40 G02 38.7 50.6 10.0 +/- 1.06 12.6 +/- 1.06 0.030 / 0.090 G05 124.6 66.1 11.1 +/- 0.56 12.0 +/- 0.56 0.030 / 0.040 G06 56.8 11.7 7.9 +/- 2.51 21.3 +/- 2.51 0.120 / 0.130 G12 193.8 62.0 11.6 +/- 0.67 12.9 +/- 0.67 0.100 / 0.170 G25 289.7 55.6 8.8 +/- 1.48 10.4 +/- 1.48 0.030 / 0.030 G29 310.5 31.1 10.3 +/- 1.67 17.7 +/- 1.67 0.030 / 0.030