PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/12-03:27:30 G01 225.8 18.3 6.0 +/- 2.16 13.8 +/- 2.16 0.210 / 0.270 G03 293.7 66.1 4.9 +/- 0.52 5.3 +/- 0.52 0.130 / 0.180 G14 83.3 27.4 3.7 +/- 2.28 6.8 +/- 2.28 0.090 / 0.180 G16 146.1 43.2 6.8 +/- 1.15 9.4 +/- 1.15 0.100 / 0.150 G22 227.5 72.0 6.0 +/- 0.69 6.3 +/- 0.69 0.040 / 0.040 G23 307.0 37.8 4.4 +/- 1.62 6.7 +/- 1.62 0.050 / 0.040 G26 100.3 53.6 3.9 +/- 1.25 4.8 +/- 1.25 0.040 / 0.080 G31 45.2 32.3 3.0 +/- 1.36 5.1 +/- 1.36 0.050 / 0.080