PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/03/23-15:43:10 G03 309.1 59.5 11.0 +/- 0.80 12.5 +/- 0.80 0.060 / 0.090 G14 70.6 35.9 9.5 +/- 0.67 14.8 +/- 0.67 0.070 / 0.080 G16 156.7 29.9 14.0 +/- 1.06 24.7 +/- 1.06 0.080 / 0.110 G18 137.6 -31.6 33.4 +/- 3.20 56.6 +/- 3.20 0.070 / 0.090 G22 264.7 76.9 12.3 +/- 1.14 12.6 +/- 1.14 0.110 / 0.380 G23 297.0 29.3 10.9 +/- 3.22 19.5 +/- 3.22 0.290 / 0.470 G26 121.1 47.3 13.4 +/- 1.08 17.5 +/- 1.08 0.030 / 0.030 G31 41.2 45.1 9.5 +/- 1.11 12.8 +/- 1.11 0.030 / 0.030 G32 87.7 14.5 11.5 +/- 3.70 28.9 +/- 3.70 0.070 / 0.050