PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/06-16:12:50 G01 68.9 32.7 9.5 +/- 1.05 15.8 +/- 1.05 0.030 / 0.040 G07 138.3 29.7 9.6 +/- 1.15 16.9 +/- 1.15 0.050 / 0.040 G11 52.4 29.4 8.1 +/- 1.17 14.4 +/- 1.17 0.040 / 0.080 G13 272.3 37.4 10.1 +/- 0.96 15.3 +/- 0.96 0.040 / 0.080 G15 303.0 14.5 6.9 +/- 1.60 17.4 +/- 1.60 0.030 / 0.050 G17 236.2 69.8 11.4 +/- 0.86 12.1 +/- 0.86 0.040 / 0.060 G18 47.7 17.3 7.6 +/- 0.89 17.8 +/- 0.89 0.060 / 0.140 G19 225.2 40.8 14.2 +/- 0.53 20.4 +/- 0.53 0.060 / 0.130 G28 22.3 58.9 10.3 +/- 0.28 11.8 +/- 0.28 0.060 / 0.170 G30 137.2 60.9 10.2 +/- 0.38 11.5 +/- 0.38 0.060 / 0.170