PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/11/27-02:58:00 G07 19.5 68.7 3.6 +/- 0.72 3.9 +/- 0.72 0.040 / 0.050 G08 61.1 46.6 2.9 +/- 0.57 3.9 +/- 0.57 0.050 / 0.060 G09 175.4 44.7 6.5 +/- 1.18 8.8 +/- 1.18 0.040 / 0.050 G11 132.9 28.8 6.9 +/- 0.99 12.5 +/- 0.99 0.050 / 0.070 G23 160.5 19.0 6.1 +/- 1.48 13.8 +/- 1.48 0.090 / 0.190 G27 40.0 16.2 3.3 +/- 1.20 8.0 +/- 1.20 0.080 / 0.200 G28 254.6 38.5 5.7 +/- 1.43 8.5 +/- 1.43 0.070 / 0.130 G30 317.8 48.5 3.5 +/- 0.62 4.6 +/- 0.62 0.060 / 0.110