PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/04-06:43:00 G08 263.7 16.1 7.4 +/- 2.35 17.9 +/- 2.35 0.180 / 0.440 G10 71.6 54.9 4.3 +/- 0.56 5.2 +/- 0.56 0.210 / 0.410 G11 307.6 20.3 6.3 +/- 2.16 13.8 +/- 2.16 0.050 / 0.050 G14 279.7 69.3 6.6 +/- 0.69 7.0 +/- 0.69 0.040 / 0.060 G18 308.8 37.3 5.1 +/- 1.19 7.8 +/- 1.19 0.220 / 0.370 G20 100.5 33.1 5.4 +/- 1.16 9.0 +/- 1.16 0.140 / 0.400 G21 155.7 10.4 6.0 +/- 2.72 16.5 +/- 2.72 0.030 / 0.040 G27 228.9 13.0 6.0 +/- 7.33 15.6 +/- 7.33 0.040 / 0.040 G31 176.6 36.2 8.9 +/- 1.02 13.8 +/- 1.02 0.120 / 0.370 G32 344.7 72.5 5.9 +/- 0.69 6.1 +/- 0.69 0.120 / 0.370