PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/10-09:42:40 G01 126.3 12.2 5.0 +/- 3.01 13.2 +/- 3.01 0.030 / 0.030 G07 57.4 69.1 5.3 +/- 0.40 5.7 +/- 0.40 0.030 / 0.030 G08 48.9 37.2 3.0 +/- 0.60 4.5 +/- 0.60 0.040 / 0.040 G09 174.7 31.0 7.2 +/- 0.93 12.4 +/- 0.93 0.040 / 0.030 G11 115.9 36.1 7.6 +/- 1.47 11.8 +/- 1.47 0.090 / 0.340 G13 320.8 12.7 2.3 +/- 1.45 6.1 +/- 1.45 0.090 / 0.430 G17 199.5 17.1 4.4 +/- 1.91 10.4 +/- 1.91 0.110 / 0.320 G18 101.7 17.1 5.9 +/- 0.90 14.0 +/- 0.90 0.120 / 0.300 G28 276.7 52.8 6.2 +/- 0.79 7.6 +/- 0.79 0.100 / 0.410 G30 331.9 60.1 3.8 +/- 0.84 4.3 +/- 0.84 0.090 / 0.350