PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/02/06-20:27:50 G03 193.8 30.6 11.9 +/- 1.79 20.6 +/- 1.79 0.080 / 0.140 G07 281.8 34.6 10.1 +/- 1.75 16.2 +/- 1.75 0.090 / 0.140 G08 146.6 19.9 12.3 +/- 1.77 27.1 +/- 1.77 0.190 / 0.380 G09 320.3 52.3 11.6 +/- 1.28 14.3 +/- 1.28 0.190 / 0.310 G16 50.0 52.3 10.2 +/- 0.48 12.5 +/- 0.48 0.060 / 0.120 G22 180.0 14.9 12.4 +/- 3.38 30.8 +/- 3.38 0.080 / 0.110 G23 17.8 81.9 9.7 +/- 0.66 9.8 +/- 0.66 0.070 / 0.120 G26 43.9 25.5 10.8 +/- 1.42 20.8 +/- 1.42 0.080 / 0.130 G27 114.7 27.7 12.7 +/- 1.85 23.3 +/- 1.85 0.030 / 0.030