PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/07/01-04:42:50 G08 268.9 17.8 10.5 +/- 1.92 24.4 +/- 1.92 0.150 / 0.230 G10 64.5 56.8 6.5 +/- 0.57 7.7 +/- 0.57 0.230 / 0.320 G11 311.1 17.6 -7.6 +/- 9.69 -17.7 +/- 9.69 0.030 / 0.030 G14 267.7 66.7 8.4 +/- 0.95 9.0 +/- 0.95 0.030 / 0.030 G18 311.8 33.6 6.1 +/- 1.00 10.0 +/- 1.00 0.190 / 0.550 G20 96.3 36.2 6.7 +/- 0.89 10.3 +/- 0.89 0.260 / 0.660 G21 155.3 15.0 6.5 +/- 6.05 16.2 +/- 6.05 0.080 / 0.060 G27 231.8 15.8 10.4 +/- 1.85 25.3 +/- 1.85 0.070 / 0.040 G31 177.1 32.1 9.2 +/- 1.48 15.4 +/- 1.48 0.070 / 0.100 G32 334.2 74.3 8.2 +/- 0.65 8.5 +/- 0.65 0.070 / 0.100