PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/16-04:43:10 G03 204.2 48.3 6.2 +/- 1.24 8.0 +/- 1.24 0.070 / 0.120 G07 266.4 24.0 4.3 +/- 1.12 8.5 +/- 1.12 0.110 / 0.140 G09 315.5 38.1 4.7 +/- 1.42 7.0 +/- 1.42 0.040 / 0.050 G16 68.0 59.8 5.5 +/- 0.40 6.3 +/- 0.40 0.040 / 0.040 G22 187.2 31.8 5.8 +/- 1.51 9.7 +/- 1.51 0.070 / 0.220 G23 345.7 70.8 5.3 +/- 0.81 5.6 +/- 0.81 0.080 / 0.230 G26 47.0 33.8 5.0 +/- 1.39 8.1 +/- 1.39 0.050 / 0.040 G27 126.4 17.3 5.0 +/- 1.49 11.8 +/- 1.49 0.040 / 0.030