PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/03/27-15:28:00 G03 309.0 59.4 7.6 +/- 0.96 8.7 +/- 0.96 0.080 / 0.110 G14 70.7 35.9 7.7 +/- 0.78 12.0 +/- 0.78 0.080 / 0.110 G16 156.5 30.1 12.1 +/- 0.82 21.2 +/- 0.82 0.240 / 0.580 G18 213.6 18.6 11.1 +/- 3.03 25.4 +/- 3.03 0.350 / 0.440 G22 262.9 77.1 8.5 +/- 0.93 8.7 +/- 0.93 0.030 / 0.030 G23 297.2 29.5 8.6 +/- 2.17 15.2 +/- 2.17 0.030 / 0.030 G26 120.8 47.5 10.9 +/- 0.77 14.2 +/- 0.77 0.080 / 0.110 G31 41.2 44.8 8.0 +/- 1.12 10.9 +/- 1.12 0.080 / 0.120 G32 87.8 14.4 8.7 +/- 3.28 22.0 +/- 3.28 0.040 / 0.050