PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/29-01:28:10 G10 263.6 37.3 12.7 +/- 1.51 19.3 +/- 1.51 0.040 / 0.040 G13 43.3 19.9 9.0 +/- 1.40 19.9 +/- 1.40 0.050 / 0.050 G15 62.4 50.5 11.3 +/- 0.38 14.1 +/- 0.38 0.170 / 0.330 G16 283.6 13.3 10.7 +/- 2.05 27.6 +/- 2.05 0.130 / 0.360 G20 291.1 58.4 12.6 +/- 1.00 14.5 +/- 1.00 0.090 / 0.100 G21 354.9 69.2 11.0 +/- 0.62 11.6 +/- 0.62 0.080 / 0.080 G24 123.7 12.2 12.9 +/- 2.30 34.4 +/- 2.30 0.130 / 0.330 G27 320.5 15.3 7.2 +/- 1.99 17.7 +/- 1.99 0.110 / 0.270 G29 166.0 33.7 13.2 +/- 1.44 21.4 +/- 1.44 0.080 / 0.250