PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/09-15:42:30 G02 65.6 27.7 7.8 +/- 2.62 14.4 +/- 2.62 0.030 / 0.040 G05 50.9 57.2 10.3 +/- 0.98 12.0 +/- 0.98 0.030 / 0.050 G12 181.4 23.6 10.1 +/- 1.57 20.3 +/- 1.57 0.390 / 0.530 G13 120.1 20.1 11.6 +/- 2.17 25.5 +/- 2.17 0.160 / 0.340 G15 158.8 19.3 10.7 +/- 1.57 23.9 +/- 1.57 0.080 / 0.230 G21 278.0 21.5 9.5 +/- 3.57 20.1 +/- 3.57 0.140 / 0.240 G25 227.5 46.3 9.4 +/- 2.88 12.4 +/- 2.88 0.100 / 0.170 G29 333.5 61.3 8.3 +/- 0.46 9.4 +/- 0.46 0.100 / 0.200