PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/03-05:27:40 G01 220.1 10.9 5.6 +/- 2.44 15.3 +/- 2.44 0.030 / 0.040 G03 266.6 69.0 6.9 +/- 0.80 7.4 +/- 0.80 0.030 / 0.040 G09 300.5 16.4 5.7 +/- 2.58 13.6 +/- 2.58 0.040 / 0.060 G14 94.1 19.1 4.8 +/- 1.50 10.9 +/- 1.50 0.040 / 0.070 G16 131.8 54.4 6.1 +/- 0.40 7.3 +/- 0.40 0.120 / 0.170 G22 205.4 63.4 7.5 +/- 0.90 8.2 +/- 0.90 0.100 / 0.250 G23 313.2 42.6 5.3 +/- 0.85 7.3 +/- 0.85 0.040 / 0.050 G26 77.1 52.5 5.6 +/- 0.95 6.9 +/- 0.95 0.040 / 0.040 G31 49.6 22.8 2.8 +/- 2.05 5.8 +/- 2.05 0.170 / 0.350