PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/09-01:12:30 G02 20.8 65.4 9.6 +/- 0.49 10.4 +/- 0.49 0.030 / 0.030 G05 152.9 50.6 12.1 +/- 0.56 15.2 +/- 0.56 0.020 / 0.030 G06 47.5 25.7 10.1 +/- 1.76 19.5 +/- 1.76 0.030 / 0.040 G12 238.4 79.2 9.8 +/- 0.24 10.0 +/- 0.24 0.030 / 0.040 G19 88.8 18.8 10.8 +/- 2.51 24.5 +/- 2.51 0.150 / 0.190 G24 216.8 11.6 12.1 +/- 2.11 32.5 +/- 2.11 0.300 / 0.280 G25 311.2 42.6 9.5 +/- 0.81 13.3 +/- 0.81 0.050 / 0.060 G29 297.7 18.1 8.8 +/- 1.57 20.3 +/- 1.57 0.050 / 0.060