PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/30-04:28:00 G01 281.8 41.3 8.1 +/- 4.64 11.5 +/- 4.64 0.050 / 0.050 G03 313.6 20.2 4.3 +/- 2.17 9.4 +/- 2.17 0.050 / 0.070 G10 124.5 24.5 6.1 +/- 0.98 12.1 +/- 0.98 0.050 / 0.070 G11 256.0 24.7 9.5 +/- 4.86 18.7 +/- 4.86 0.050 / 0.060 G14 35.5 53.7 5.6 +/- 1.80 6.8 +/- 1.80 0.060 / 0.050 G22 314.5 44.1 6.0 +/- 0.96 8.1 +/- 0.96 0.040 / 0.040 G25 56.7 16.8 5.3 +/- 1.31 12.7 +/- 1.31 0.030 / 0.020 G26 154.9 17.1 6.2 +/- 1.40 14.6 +/- 1.40 0.020 / 0.020 G31 94.9 80.7 7.5 +/- 0.52 7.6 +/- 0.52 0.030 / 0.060 G32 55.5 39.4 5.3 +/- 1.06 7.8 +/- 1.06 0.040 / 0.060