PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/11/25-01:13:10 G03 226.9 64.3 4.3 +/- 0.88 4.7 +/- 0.88 0.040 / 0.040 G07 251.9 11.4 -3.3 +/- 17.57 -9.0 +/- 17.57 0.040 / 0.040 G09 306.7 22.6 4.3 +/- 0.74 8.9 +/- 0.74 0.070 / 0.260 G14 104.7 10.0 4.7 +/- 1.82 13.1 +/- 1.82 0.080 / 0.220 G16 126.1 62.6 6.3 +/- 0.37 7.0 +/- 0.37 0.030 / 0.030 G22 192.6 50.1 6.0 +/- 0.44 7.6 +/- 0.44 0.030 / 0.030 G23 323.0 52.8 4.4 +/- 0.73 5.4 +/- 0.73 0.160 / 0.210 G26 63.8 50.9 3.4 +/- 1.00 4.2 +/- 1.00 0.190 / 0.180 G31 54.4 17.9 2.3 +/- 3.81 5.4 +/- 3.81 0.230 / 0.490