PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/09-09:13:10 G01 221.1 11.8 5.8 +/- 35.93 15.6 +/- 35.93 0.040 / 0.060 G03 265.7 69.8 7.5 +/- 36.83 7.9 +/- 36.83 0.030 / 0.060 G09 299.1 13.8 5.2 +/- 38.62 13.4 +/- 38.62 0.110 / 0.300 G14 92.1 21.8 3.8 +/- 36.71 7.9 +/- 36.71 0.110 / 0.270 G16 135.0 53.1 8.4 +/- 35.23 10.3 +/- 35.23 0.050 / 0.070 G22 200.7 63.0 9.5 +/- 34.76 10.5 +/- 34.76 0.040 / 0.060 G23 314.1 44.2 6.6 +/- 37.32 8.9 +/- 37.32 0.090 / 0.370 G26 79.7 53.0 7.2 +/- 36.40 8.7 +/- 36.40 0.100 / 0.420 G31 49.0 23.8 2.6 +/- 34.91 5.2 +/- 34.91 0.030 / 0.050