PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/03-17:58:00 G03 203.8 51.7 9.2 +/- 1.37 11.4 +/- 1.37 0.110 / 0.350 G07 262.6 22.5 9.1 +/- 2.52 18.9 +/- 2.52 0.130 / 0.280 G09 312.6 32.0 7.5 +/- 1.08 12.7 +/- 1.08 0.040 / 0.070 G16 93.3 66.2 10.0 +/- 0.39 10.8 +/- 0.39 0.050 / 0.050 G22 185.1 34.4 11.5 +/- 1.76 18.5 +/- 1.76 0.070 / 0.100 G23 333.3 63.3 9.5 +/- 0.86 10.5 +/- 0.86 0.090 / 0.110 G26 52.4 43.6 8.1 +/- 0.49 11.1 +/- 0.49 0.030 / 0.060 G27 132.5 13.3 11.4 +/- 1.44 29.4 +/- 1.44 0.030 / 0.050