PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/02/10-00:28:00 G01 95.3 30.2 7.8 +/- 1.36 13.7 +/- 1.36 0.080 / 0.110 G07 121.8 45.7 9.4 +/- 0.41 12.6 +/- 0.41 0.090 / 0.100 G11 72.1 40.8 7.8 +/- 0.99 11.1 +/- 0.99 0.060 / 0.040 G13 299.3 34.9 7.3 +/- 1.00 11.6 +/- 1.00 0.040 / 0.050 G17 210.1 51.3 10.3 +/- 0.64 12.8 +/- 0.64 0.050 / 0.050 G18 64.6 22.8 5.9 +/- 0.85 12.2 +/- 0.85 0.040 / 0.050 G19 212.3 22.0 8.3 +/- 1.77 17.5 +/- 1.77 0.070 / 0.150 G28 332.9 61.5 6.7 +/- 0.64 7.5 +/- 0.64 0.080 / 0.180 G30 82.6 79.2 8.6 +/- 0.55 8.7 +/- 0.55 0.210 / 0.120