PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/26-12:42:30 G02 50.4 40.5 2.1 +/- 0.85 3.0 +/- 0.85 0.040 / 0.050 G05 85.9 70.0 3.4 +/- 0.39 3.6 +/- 0.39 0.040 / 0.050 G12 186.8 44.3 4.2 +/- 0.86 5.7 +/- 0.86 0.490 / 0.490 G21 263.9 12.6 2.2 +/- 11.79 5.9 +/- 11.79 0.210 / 0.310 G25 244.9 58.0 4.6 +/- 1.17 5.3 +/- 1.17 0.050 / 0.040 G29 322.2 45.7 3.9 +/- 0.67 5.2 +/- 0.67 0.040 / 0.040