PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/30-23:12:30 G02 353.7 76.8 10.2 +/- 0.72 10.4 +/- 0.72 0.020 / 0.030 G05 162.1 36.8 14.0 +/- 0.73 21.5 +/- 0.73 0.030 / 0.020 G06 42.6 36.9 9.0 +/- 1.09 13.9 +/- 1.09 0.130 / 0.200 G12 305.2 74.8 7.8 +/- 0.91 8.1 +/- 0.91 0.190 / 0.180 G17 87.4 11.9 10.9 +/- 1.90 29.3 +/- 1.90 0.070 / 0.070 G19 76.5 27.2 10.5 +/- 1.33 19.5 +/- 1.33 0.040 / 0.060 G24 226.0 20.8 14.6 +/- 1.90 31.6 +/- 1.90 0.060 / 0.080 G25 316.8 30.7 10.5 +/- 0.72 18.1 +/- 0.72 0.080 / 0.060