PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/18-15:27:40 G05 48.3 19.4 4.2 +/- 0.71 9.3 +/- 0.71 0.070 / 0.120 G10 236.0 12.8 7.8 +/- 3.51 20.3 +/- 3.51 0.080 / 0.130 G13 75.6 36.0 8.4 +/- 0.50 13.1 +/- 0.50 0.180 / 0.490 G15 128.3 52.0 9.5 +/- 0.76 11.7 +/- 0.76 0.150 / 0.460 G16 314.8 12.0 6.2 +/- 2.01 16.6 +/- 2.01 0.050 / 0.060 G20 248.0 36.9 8.9 +/- 1.02 13.7 +/- 1.02 0.060 / 0.060 G21 315.0 48.5 6.8 +/- 1.07 8.8 +/- 1.07 0.030 / 0.040 G26 289.2 19.8 7.7 +/- 2.03 17.1 +/- 2.03 0.030 / 0.030 G29 153.7 71.8 9.1 +/- 1.02 9.5 +/- 1.02 0.060 / 0.130