PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/02-02:27:50 G01 241.3 29.9 7.7 +/- 1.28 13.5 +/- 1.28 0.040 / 0.060 G03 313.0 51.3 4.3 +/- 0.50 5.4 +/- 0.50 0.050 / 0.050 G14 69.2 35.7 3.7 +/- 0.75 5.9 +/- 0.75 0.030 / 0.040 G16 157.1 27.6 6.4 +/- 1.44 11.9 +/- 1.44 0.030 / 0.040 G18 213.1 19.7 8.8 +/- 1.84 19.6 +/- 1.84 0.110 / 0.300 G22 286.9 72.4 4.8 +/- 1.15 5.0 +/- 1.15 0.100 / 0.260 G23 293.1 24.1 5.9 +/- 1.32 11.7 +/- 1.32 0.050 / 0.120 G26 125.8 45.4 8.0 +/- 1.04 10.8 +/- 1.04 0.060 / 0.130 G31 40.7 49.1 2.1 +/- 0.70 2.7 +/- 0.70 0.090 / 0.140 G32 85.3 16.5 4.0 +/- 1.10 9.6 +/- 1.10 0.090 / 0.170