PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/07/01-01:43:00 G10 274.8 43.5 13.2 +/- 0.98 18.2 +/- 0.98 0.080 / 0.150 G13 39.0 12.3 9.1 +/- 2.23 24.2 +/- 2.23 0.110 / 0.140 G15 52.9 42.8 10.1 +/- 1.01 14.1 +/- 1.01 0.060 / 0.080 G20 310.6 62.6 12.5 +/- 0.61 13.9 +/- 0.61 0.090 / 0.060 G21 21.2 75.1 13.4 +/- 0.73 13.8 +/- 0.73 0.050 / 0.040 G24 115.4 17.9 20.1 +/- 1.37 46.6 +/- 1.37 0.050 / 0.040 G27 315.9 23.0 8.9 +/- 1.35 18.3 +/- 1.35 0.090 / 0.290 G29 167.2 23.4 14.4 +/- 1.50 29.2 +/- 1.50 0.190 / 0.310 G32 205.6 13.3 16.0 +/- 4.28 41.5 +/- 4.28 0.040 / 0.060