PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/13-21:12:50 G05 49.5 15.1 7.0 +/- 0.82 17.3 +/- 0.82 0.130 / 0.330 G10 237.8 16.1 14.6 +/- 3.00 35.3 +/- 3.00 0.130 / 0.300 G13 71.1 35.0 10.0 +/- 0.70 16.0 +/- 0.70 0.070 / 0.170 G15 120.1 54.1 11.8 +/- 0.96 14.2 +/- 0.96 0.070 / 0.180 G16 311.7 13.3 7.9 +/- 2.73 20.4 +/- 2.73 0.040 / 0.070 G20 251.1 39.2 14.0 +/- 1.23 20.7 +/- 1.23 0.050 / 0.060 G21 315.6 48.0 9.6 +/- 0.70 12.5 +/- 0.70 0.050 / 0.140 G26 284.8 19.9 11.2 +/- 1.30 24.8 +/- 1.30 0.050 / 0.140 G29 155.2 69.2 11.9 +/- 0.63 12.6 +/- 0.63 0.100 / 0.280