PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/15-01:43:00 G08 269.3 16.9 9.4 +/- 1.97 22.3 +/- 1.97 0.250 / 0.320 G10 68.0 55.7 8.4 +/- 0.92 10.0 +/- 0.92 0.110 / 0.250 G11 310.3 18.0 -0.6 +/- 13.97 -1.3 +/- 13.97 0.140 / 0.260 G14 270.4 66.8 8.2 +/- 0.63 8.8 +/- 0.63 0.120 / 0.270 G18 310.9 34.8 6.8 +/- 1.35 10.8 +/- 1.35 0.050 / 0.050 G20 98.4 34.5 7.9 +/- 1.78 12.6 +/- 1.78 0.040 / 0.050 G21 155.8 13.7 6.9 +/- 2.72 17.7 +/- 2.72 0.070 / 0.110 G27 230.0 14.5 10.5 +/- 1.88 26.4 +/- 1.88 0.080 / 0.110 G31 176.4 34.4 7.6 +/- 1.49 12.2 +/- 1.49 0.340 / 0.350 G32 346.3 73.1 8.0 +/- 0.44 8.3 +/- 0.44 0.200 / 0.330