PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/02/10-21:28:00 G07 320.9 53.9 9.9 +/- 0.87 12.0 +/- 0.87 0.160 / 0.300 G08 114.7 46.3 11.6 +/- 0.91 15.4 +/- 0.91 0.260 / 0.240 G09 249.1 83.3 11.0 +/- 0.92 11.1 +/- 0.92 0.120 / 0.380 G16 43.1 20.5 7.1 +/- 2.45 15.5 +/- 2.45 0.240 / 0.390 G23 150.8 57.0 11.1 +/- 0.54 13.0 +/- 0.54 0.060 / 0.040 G27 71.8 37.7 10.3 +/- 1.07 15.6 +/- 1.07 0.040 / 0.040 G28 228.0 16.4 9.0 +/- 7.60 21.6 +/- 7.60 0.050 / 0.060 G30 291.9 26.8 9.5 +/- 2.44 17.9 +/- 2.44 0.060 / 0.080