PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/11-09:42:20 G02 204.3 34.7 7.0 +/- 1.11 11.2 +/- 1.11 0.080 / 0.070 G06 157.7 70.5 8.7 +/- 0.51 9.1 +/- 0.51 0.050 / 0.060 G12 308.4 17.1 4.3 +/- 1.63 10.3 +/- 1.63 0.160 / 0.200 G17 39.5 46.0 6.1 +/- 0.70 8.1 +/- 0.70 0.210 / 0.240 G19 356.7 65.7 6.0 +/- 0.43 6.6 +/- 0.43 0.030 / 0.020 G24 292.3 41.5 5.0 +/- 5.06 7.1 +/- 5.06 0.030 / 0.020 G28 103.1 31.6 6.8 +/- 1.33 11.5 +/- 1.33 0.040 / 0.030