PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/11-12:42:40 G03 185.5 10.9 6.0 +/- 2.39 16.3 +/- 2.39 0.040 / 0.060 G07 305.4 47.7 4.4 +/- 2.06 5.7 +/- 2.06 0.050 / 0.070 G08 134.5 35.9 7.2 +/- 0.65 11.2 +/- 0.65 0.050 / 0.080 G09 315.0 72.0 6.1 +/- 0.72 6.3 +/- 0.72 0.050 / 0.080 G16 42.0 30.1 4.7 +/- 0.46 8.2 +/- 0.46 0.040 / 0.060 G23 137.9 66.9 6.7 +/- 0.86 7.2 +/- 0.86 0.040 / 0.050 G27 88.1 36.8 5.4 +/- 0.65 8.3 +/- 0.65 0.040 / 0.040 G30 283.0 21.6 5.5 +/- 2.06 11.6 +/- 2.06 0.030 / 0.040