PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/07/14-01:28:00 G10 298.2 52.7 12.2 +/- 1.63 14.9 +/- 1.63 0.050 / 0.100 G14 209.8 10.7 -4.7 +/- 25.97 -13.0 +/- 25.97 0.060 / 0.090 G15 46.1 27.9 8.7 +/- 1.62 15.8 +/- 1.62 0.070 / 0.070 G20 350.5 65.2 12.7 +/- 0.50 13.8 +/- 0.50 0.060 / 0.070 G21 93.1 74.8 14.2 +/- 0.43 14.7 +/- 0.43 0.040 / 0.040 G24 98.8 26.4 12.3 +/- 1.12 23.2 +/- 1.12 0.040 / 0.030 G27 301.8 33.7 10.0 +/- 2.10 16.2 +/- 2.10 0.300 / 0.580 G32 210.3 30.1 17.1 +/- 1.69 29.8 +/- 1.69 0.080 / 0.150