PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/07-10:27:40 G01 219.5 11.2 4.3 +/- 1.42 11.8 +/- 1.42 0.040 / 0.040 G03 254.0 71.5 4.2 +/- 0.44 4.4 +/- 0.44 0.040 / 0.050 G09 298.4 11.8 -0.5 +/- 22.56 -1.3 +/- 22.56 0.040 / 0.040 G14 93.4 18.9 3.9 +/- 2.47 8.7 +/- 2.47 0.040 / 0.040 G16 139.8 51.8 7.0 +/- 0.59 8.6 +/- 0.59 0.180 / 0.370 G22 199.4 61.8 5.1 +/- 1.08 5.7 +/- 1.08 0.160 / 0.390 G23 315.2 45.5 4.0 +/- 0.69 5.4 +/- 0.69 0.120 / 0.310 G26 83.3 54.5 6.0 +/- 0.97 7.2 +/- 0.97 0.120 / 0.240 G31 49.1 24.5 3.9 +/- 2.47 7.8 +/- 2.47 0.230 / 0.310