PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/05-04:58:00 G10 291.2 49.6 8.4 +/- 2.64 10.6 +/- 2.64 0.040 / 0.030 G15 47.1 32.6 4.9 +/- 1.27 8.2 +/- 1.27 0.040 / 0.030 G20 7.1 64.9 6.9 +/- 0.58 7.5 +/- 0.58 0.080 / 0.100 G21 78.4 76.7 7.9 +/- 0.54 8.1 +/- 0.54 0.050 / 0.080 G24 101.5 24.7 6.5 +/- 1.39 12.8 +/- 1.39 0.090 / 0.150 G27 304.6 32.3 6.1 +/- 2.53 10.2 +/- 2.53 0.090 / 0.120 G29 168.7 12.1 6.2 +/- 1.24 16.5 +/- 1.24 0.050 / 0.060 G32 208.6 29.6 8.3 +/- 1.15 14.7 +/- 1.15 0.060 / 0.100