PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/19-07:42:40 G01 78.6 32.3 3.6 +/- 1.20 6.0 +/- 1.20 0.030 / 0.020 G07 131.7 37.6 5.6 +/- 0.40 8.5 +/- 0.40 0.030 / 0.020 G11 61.6 38.5 4.5 +/- 1.04 6.7 +/- 1.04 0.160 / 0.190 G13 283.7 38.9 -1.5 +/- 3.53 -2.3 +/- 3.53 0.090 / 0.220 G15 308.6 13.6 2.0 +/- 2.64 5.3 +/- 2.64 0.070 / 0.060 G17 220.0 60.5 6.7 +/- 1.46 7.6 +/- 1.46 0.050 / 0.050 G19 217.5 36.6 5.5 +/- 1.11 8.5 +/- 1.11 0.040 / 0.060 G28 347.4 61.5 2.6 +/- 0.83 2.9 +/- 0.83 0.050 / 0.060 G30 123.1 72.7 5.2 +/- 0.85 5.4 +/- 0.85 0.090 / 0.110