PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/23-17:27:50 G03 191.3 27.3 10.9 +/- 4.27 20.3 +/- 4.27 0.050 / 0.080 G07 284.5 36.9 10.9 +/- 1.42 16.7 +/- 1.42 0.070 / 0.110 G08 146.1 21.0 12.0 +/- 2.20 25.7 +/- 2.20 0.040 / 0.040 G09 320.2 52.9 9.5 +/- 0.55 11.6 +/- 0.55 0.060 / 0.050 G16 49.2 52.2 9.6 +/- 0.69 11.7 +/- 0.69 0.090 / 0.100 G22 177.8 11.5 10.8 +/- 1.61 29.1 +/- 1.61 0.080 / 0.110 G23 40.0 83.1 10.1 +/- 1.68 10.2 +/- 1.68 0.070 / 0.270 G26 43.6 22.5 6.9 +/- 1.96 14.4 +/- 1.96 0.130 / 0.230 G27 112.1 28.9 12.0 +/- 1.07 21.4 +/- 1.07 0.180 / 0.330