PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/29-08:28:00 G01 125.3 13.0 4.8 +/- 3.17 12.4 +/- 3.17 0.030 / 0.030 G07 61.8 68.7 5.2 +/- 0.54 5.5 +/- 0.54 0.040 / 0.030 G08 47.9 35.8 3.5 +/- 0.66 5.5 +/- 0.66 0.050 / 0.030 G09 173.9 28.7 6.7 +/- 1.84 12.0 +/- 1.84 0.040 / 0.030 G11 114.2 36.8 6.9 +/- 0.87 10.6 +/- 0.87 0.120 / 0.390 G13 320.4 13.8 2.4 +/- 2.25 6.3 +/- 2.25 0.090 / 0.310 G17 199.5 18.7 3.7 +/- 1.88 8.5 +/- 1.88 0.170 / 0.340 G18 100.1 17.7 5.0 +/- 1.78 11.7 +/- 1.78 0.180 / 0.300 G28 278.4 53.3 5.1 +/- 3.16 6.1 +/- 3.16 0.110 / 0.220 G30 333.2 61.1 3.9 +/- 0.47 4.4 +/- 0.47 0.130 / 0.260