PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/11-14:12:50 G01 118.9 18.0 8.3 +/- 0.92 19.1 +/- 0.92 0.040 / 0.040 G07 81.0 66.5 8.2 +/- 0.54 8.8 +/- 0.54 0.030 / 0.040 G08 44.8 31.1 6.0 +/- 0.72 10.3 +/- 0.72 0.100 / 0.290 G09 176.0 24.5 8.5 +/- 1.25 16.7 +/- 1.25 0.100 / 0.370 G11 106.0 40.0 8.9 +/- 0.75 12.9 +/- 0.75 0.050 / 0.080 G13 317.5 19.7 6.9 +/- 2.10 15.2 +/- 2.10 0.040 / 0.090 G17 201.8 24.4 7.4 +/- 1.63 14.6 +/- 1.63 0.030 / 0.030 G18 93.8 20.9 8.8 +/- 0.72 18.9 +/- 0.72 0.020 / 0.040 G28 293.0 57.4 7.9 +/- 0.97 9.2 +/- 0.97 0.040 / 0.060 G30 345.6 68.4 6.4 +/- 0.92 6.9 +/- 0.92 0.040 / 0.060