PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/02-11:12:40 G03 222.0 65.6 4.8 +/- 0.89 5.2 +/- 0.89 0.040 / 0.060 G07 251.4 14.2 6.7 +/- 1.81 17.0 +/- 1.81 0.040 / 0.050 G09 304.9 19.6 5.0 +/- 1.13 11.2 +/- 1.13 0.090 / 0.190 G14 102.3 11.9 2.6 +/- 2.19 7.0 +/- 2.19 0.170 / 0.200 G16 122.7 60.6 6.6 +/- 0.73 7.5 +/- 0.73 0.040 / 0.050 G22 191.1 50.1 5.5 +/- 1.87 6.9 +/- 1.87 0.030 / 0.050 G23 323.9 53.8 4.6 +/- 0.90 5.6 +/- 0.90 0.120 / 0.460 G26 65.3 50.5 3.2 +/- 0.38 4.1 +/- 0.38 0.120 / 0.450 G31 54.4 16.2 2.2 +/- 1.27 5.4 +/- 1.27 0.030 / 0.040