PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/28-05:58:10 G08 265.2 16.7 7.6 +/- 2.21 18.2 +/- 2.21 0.100 / 0.460 G10 67.1 57.0 3.3 +/- 0.44 3.9 +/- 0.44 0.070 / 0.390 G11 309.5 18.9 5.2 +/- 1.78 11.9 +/- 1.78 0.270 / 0.420 G14 269.6 65.3 3.2 +/- 0.93 3.5 +/- 0.93 0.280 / 0.440 G18 310.8 34.0 5.0 +/- 1.24 8.1 +/- 1.24 0.040 / 0.060 G20 96.6 38.0 4.6 +/- 0.64 6.8 +/- 0.64 0.040 / 0.060 G21 155.4 13.0 4.5 +/- 3.87 11.7 +/- 3.87 0.040 / 0.040 G27 229.4 13.7 4.8 +/- 16.91 12.2 +/- 16.91 0.030 / 0.030 G31 175.9 35.6 6.7 +/- 0.88 10.5 +/- 0.88 0.180 / 0.330 G32 355.3 71.7 4.6 +/- 0.38 4.8 +/- 0.38 0.190 / 0.370