PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/12/08-17:57:40 G01 319.7 17.5 5.9 +/- 1.84 13.9 +/- 1.84 0.130 / 0.330 G08 259.9 15.3 8.1 +/- 1.94 19.9 +/- 1.94 0.160 / 0.400 G10 75.6 53.1 9.0 +/- 0.78 10.9 +/- 0.78 0.120 / 0.160 G11 309.2 18.1 7.6 +/- 1.56 17.5 +/- 1.56 0.120 / 0.160 G14 275.8 66.6 8.4 +/- 1.24 9.1 +/- 1.24 0.040 / 0.060 G20 103.8 28.5 9.4 +/- 0.65 17.0 +/- 0.65 0.040 / 0.060 G27 226.3 11.5 7.8 +/- 4.64 20.9 +/- 4.64 0.120 / 0.310 G31 177.0 37.4 10.8 +/- 1.80 16.4 +/- 1.80 0.140 / 0.310 G32 4.5 69.2 8.8 +/- 0.66 9.4 +/- 0.66 0.060 / 0.090