PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/29-07:57:40 G01 82.4 33.0 3.8 +/- 0.79 6.3 +/- 0.79 0.090 / 0.090 G07 131.1 38.3 6.1 +/- 1.37 9.1 +/- 1.37 0.070 / 0.100 G11 60.2 35.6 5.0 +/- 1.14 7.8 +/- 1.14 0.060 / 0.110 G13 286.3 37.9 3.3 +/- 0.89 4.9 +/- 0.89 0.070 / 0.110 G15 313.1 10.6 -7.2 +/- 15.28 -19.9 +/- 15.28 0.050 / 0.060 G17 219.7 62.6 9.2 +/- 1.33 10.2 +/- 1.33 0.050 / 0.080 G18 55.4 20.9 5.2 +/- 3.80 11.2 +/- 3.80 0.030 / 0.030 G19 217.9 29.8 6.0 +/- 2.91 10.5 +/- 2.91 0.030 / 0.020 G28 358.7 61.4 4.8 +/- 1.03 5.4 +/- 1.03 0.280 / 0.350 G30 120.5 72.7 6.5 +/- 0.85 6.8 +/- 0.85 0.190 / 0.210