PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/07-02:58:10 G01 222.9 13.8 5.2 +/- 1.95 13.2 +/- 1.95 0.040 / 0.040 G03 276.9 68.8 2.2 +/- 0.67 2.4 +/- 0.67 0.050 / 0.040 G09 299.0 16.3 3.1 +/- 1.68 7.5 +/- 1.68 0.210 / 0.390 G14 90.5 21.6 1.8 +/- 1.23 3.9 +/- 1.23 0.240 / 0.360 G16 140.1 50.0 5.3 +/- 0.57 6.7 +/- 0.57 0.120 / 0.290 G22 209.8 66.9 4.0 +/- 0.75 4.3 +/- 0.75 0.120 / 0.300 G23 310.0 39.5 3.3 +/- 1.02 4.9 +/- 1.02 0.050 / 0.100 G26 87.9 54.4 3.5 +/- 0.59 4.2 +/- 0.59 0.070 / 0.090 G31 47.2 28.4 0.1 +/- 0.72 0.2 +/- 0.72 0.150 / 0.340