PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/24-12:12:50 G01 57.6 29.2 3.1 +/- 0.85 5.6 +/- 0.85 0.070 / 0.250 G07 142.2 18.8 5.1 +/- 1.78 11.7 +/- 1.78 0.070 / 0.270 G11 47.7 24.0 2.7 +/- 1.42 5.3 +/- 1.42 0.060 / 0.110 G13 259.6 35.7 5.9 +/- 0.81 9.2 +/- 0.81 0.060 / 0.090 G15 293.4 16.0 3.4 +/- 1.66 8.2 +/- 1.66 0.040 / 0.060 G17 254.5 74.3 5.8 +/- 0.60 6.0 +/- 0.60 0.040 / 0.050 G18 40.9 11.7 3.0 +/- 2.57 8.0 +/- 2.57 0.060 / 0.120 G19 233.3 53.7 6.8 +/- 1.40 8.2 +/- 1.40 0.060 / 0.130 G28 25.9 59.4 3.5 +/- 0.49 4.0 +/- 0.49 0.210 / 0.290 G30 144.8 51.7 6.1 +/- 1.81 7.6 +/- 1.81 0.160 / 0.390