PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/10/10-04:12:30 G03 239.6 67.1 4.8 +/- 1.10 5.1 +/- 1.10 0.060 / 0.060 G09 305.0 20.9 3.1 +/- 2.58 6.7 +/- 2.58 0.060 / 0.050 G14 101.8 12.0 4.2 +/- 0.99 11.3 +/- 0.99 0.100 / 0.250 G16 132.3 59.8 6.2 +/- 0.70 7.1 +/- 0.70 0.090 / 0.240 G22 194.9 54.5 4.6 +/- 1.38 5.5 +/- 1.38 0.090 / 0.140 G23 319.3 49.0 3.0 +/- 0.89 3.8 +/- 0.89 0.110 / 0.170 G26 71.9 54.3 4.0 +/- 0.30 4.8 +/- 0.30 0.050 / 0.050 G31 51.9 21.5 0.4 +/- 0.66 1.0 +/- 0.66 0.040 / 0.060