PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/10-04:57:40 G01 220.4 11.2 5.0 +/- 1.64 13.7 +/- 1.64 0.030 / 0.040 G03 264.9 69.6 6.4 +/- 0.88 6.8 +/- 0.88 0.040 / 0.040 G09 300.8 17.4 5.3 +/- 2.30 12.4 +/- 2.30 0.120 / 0.250 G14 93.5 19.7 4.3 +/- 1.56 9.4 +/- 1.56 0.140 / 0.250 G16 134.7 53.6 6.1 +/- 0.37 7.4 +/- 0.37 0.050 / 0.090 G22 203.4 63.2 5.5 +/- 0.99 6.1 +/- 0.99 0.060 / 0.050 G23 313.3 42.9 4.7 +/- 0.98 6.5 +/- 0.98 0.200 / 0.420 G26 79.8 53.5 4.9 +/- 0.84 5.9 +/- 0.84 0.180 / 0.450 G31 49.1 24.4 3.5 +/- 2.92 6.9 +/- 2.92 0.040 / 0.050