PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/20-00:12:40 G01 239.8 30.9 11.7 +/- 0.88 20.1 +/- 0.88 0.030 / 0.040 G03 314.1 50.1 7.6 +/- 1.23 9.5 +/- 1.23 0.040 / 0.040 G14 65.3 39.2 6.4 +/- 1.11 9.4 +/- 1.11 0.060 / 0.100 G16 157.2 26.2 9.7 +/- 1.95 18.4 +/- 1.95 0.080 / 0.120 G22 291.4 70.7 7.0 +/- 0.82 7.4 +/- 0.82 0.060 / 0.140 G23 292.9 25.0 8.7 +/- 0.95 17.1 +/- 0.95 0.070 / 0.150 G26 127.5 44.4 10.0 +/- 1.26 13.6 +/- 1.26 0.090 / 0.220 G31 41.3 49.3 5.4 +/- 0.54 6.8 +/- 0.54 0.070 / 0.190 G32 83.9 17.1 6.3 +/- 1.84 14.9 +/- 1.84 0.040 / 0.050