PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/22-13:57:40 G07 50.2 68.2 5.1 +/- 0.35 5.5 +/- 0.35 0.040 / 0.030 G08 56.2 44.9 5.0 +/- 0.70 6.8 +/- 0.70 0.030 / 0.050 G09 179.5 43.0 8.8 +/- 1.36 12.2 +/- 1.36 0.060 / 0.080 G11 123.2 33.1 7.6 +/- 1.23 12.4 +/- 1.23 0.070 / 0.090 G18 107.2 14.0 8.6 +/- 0.89 21.8 +/- 0.89 0.070 / 0.110 G23 159.5 10.2 8.1 +/- 3.53 22.5 +/- 3.53 0.060 / 0.130 G27 38.3 12.3 4.4 +/- 2.60 11.7 +/- 2.60 0.130 / 0.190 G28 263.4 45.3 5.4 +/- 1.02 7.3 +/- 1.02 0.160 / 0.250 G30 330.1 58.6 5.0 +/- 0.70 5.7 +/- 0.70 0.280 / 0.510