PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/11-09:43:00 G01 98.4 28.3 6.6 +/- 1.12 11.9 +/- 1.12 0.050 / 0.060 G07 116.7 50.9 9.8 +/- 0.66 12.3 +/- 0.66 0.040 / 0.060 G08 41.8 17.3 3.1 +/- 3.23 7.3 +/- 3.23 0.030 / 0.040 G11 80.6 43.9 8.2 +/- 1.29 11.2 +/- 1.29 0.030 / 0.050 G13 303.0 33.7 4.1 +/- 0.92 6.7 +/- 0.92 0.120 / 0.140 G17 208.5 42.1 6.8 +/- 1.11 9.6 +/- 1.11 0.090 / 0.130 G18 72.2 24.7 6.2 +/- 1.10 12.2 +/- 1.10 0.090 / 0.160 G19 210.0 20.9 4.5 +/- 1.26 9.7 +/- 1.26 0.080 / 0.120 G28 316.8 59.6 4.7 +/- 0.84 5.4 +/- 0.84 0.050 / 0.060 G30 52.8 80.6 7.3 +/- 0.76 7.4 +/- 0.76 0.050 / 0.060