PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/04/10-13:58:00 G01 228.5 20.0 9.5 +/- 2.99 20.9 +/- 2.99 0.040 / 0.040 G03 289.0 69.8 7.2 +/- 0.63 7.6 +/- 0.63 0.040 / 0.030 G14 83.1 25.9 6.8 +/- 1.40 13.1 +/- 1.40 0.210 / 0.310 G16 154.1 38.4 9.3 +/- 0.76 13.8 +/- 0.76 0.290 / 0.310 G22 209.9 71.7 7.3 +/- 0.47 7.6 +/- 0.47 0.030 / 0.030 G23 304.3 34.5 5.9 +/- 1.50 9.5 +/- 1.50 0.040 / 0.040 G26 110.2 53.5 8.6 +/- 0.49 10.4 +/- 0.49 0.180 / 0.240 G31 43.7 36.7 7.1 +/- 1.02 11.0 +/- 1.02 0.130 / 0.190 G32 94.2 13.0 6.5 +/- 2.26 16.8 +/- 2.26 0.100 / 0.170