PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/01/24-12:13:10 G10 242.7 19.0 4.7 +/- 1.61 10.7 +/- 1.61 0.100 / 0.250 G13 64.7 35.1 2.6 +/- 0.83 4.2 +/- 0.83 0.100 / 0.170 G15 103.8 56.4 5.3 +/- 0.57 6.2 +/- 0.57 0.030 / 0.040 G16 307.6 13.7 2.3 +/- 1.94 5.8 +/- 1.94 0.030 / 0.050 G20 30.5 61.7 3.6 +/- 0.62 4.0 +/- 0.62 0.040 / 0.060 G21 326.2 55.9 1.9 +/- 0.61 2.3 +/- 0.61 0.040 / 0.060 G26 278.4 18.7 4.0 +/- 1.96 9.1 +/- 1.96 0.050 / 0.110 G29 160.0 58.6 5.6 +/- 0.69 6.5 +/- 0.69 0.060 / 0.110