PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/14-01:57:50 G03 240.3 68.3 5.0 +/- 0.95 5.3 +/- 0.95 0.040 / 0.050 G09 304.3 20.5 4.5 +/- 2.54 9.7 +/- 2.54 0.040 / 0.050 G14 98.6 16.9 4.7 +/- 2.36 11.1 +/- 2.36 0.130 / 0.540 G16 121.3 58.9 5.4 +/- 0.34 6.2 +/- 0.34 0.110 / 0.420 G22 198.2 55.6 5.9 +/- 0.99 7.0 +/- 0.99 0.040 / 0.050 G23 320.5 50.4 4.1 +/- 0.85 5.2 +/- 0.85 0.040 / 0.050 G26 67.8 50.7 3.8 +/- 0.27 4.8 +/- 0.27 0.030 / 0.040 G31 53.1 17.9 1.8 +/- 1.00 4.1 +/- 1.00 0.040 / 0.040