PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/02-08:27:50 G01 92.4 30.1 4.9 +/- 0.80 8.5 +/- 0.80 0.030 / 0.030 G07 122.0 47.2 6.1 +/- 2.52 7.9 +/- 2.52 0.030 / 0.040 G08 42.0 12.1 1.6 +/- 1.33 4.4 +/- 1.33 0.040 / 0.050 G11 74.3 43.1 5.0 +/- 0.72 6.9 +/- 0.72 0.030 / 0.060 G13 297.6 36.1 4.8 +/- 1.86 7.5 +/- 1.86 0.050 / 0.120 G17 211.0 48.2 7.5 +/- 1.24 9.7 +/- 1.24 0.080 / 0.100 G18 66.8 24.3 4.0 +/- 0.62 7.9 +/- 0.62 0.070 / 0.160 G19 211.9 25.8 6.3 +/- 2.18 12.0 +/- 2.18 0.070 / 0.150 G28 325.7 60.5 3.0 +/- 0.78 3.4 +/- 0.78 0.080 / 0.110 G30 81.1 80.2 4.3 +/- 0.47 4.3 +/- 0.47 0.090 / 0.110