PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/07/11-04:12:50 G08 264.7 15.8 7.7 +/- 3.75 18.7 +/- 3.75 0.140 / 0.260 G10 72.9 54.4 4.2 +/- 1.01 5.0 +/- 1.01 0.220 / 0.290 G11 307.5 20.2 4.3 +/- 2.24 9.4 +/- 2.24 0.040 / 0.040 G14 279.9 69.0 5.2 +/- 0.68 5.5 +/- 0.68 0.030 / 0.040 G18 308.6 37.5 4.0 +/- 1.56 6.1 +/- 1.56 0.320 / 0.570 G20 101.0 32.9 4.1 +/- 1.65 6.7 +/- 1.65 0.200 / 0.670 G21 156.0 10.5 5.8 +/- 3.43 16.1 +/- 3.43 0.060 / 0.050 G27 228.1 12.5 5.6 +/- 1.63 14.9 +/- 1.63 0.070 / 0.060 G31 175.9 37.4 6.5 +/- 1.38 9.9 +/- 1.38 0.060 / 0.080 G32 351.3 71.7 4.5 +/- 0.34 4.7 +/- 0.34 0.050 / 0.090