PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/11/28-02:42:40 G07 6.8 67.1 4.3 +/- 1.04 4.6 +/- 1.04 0.060 / 0.040 G08 67.6 49.2 4.6 +/- 0.72 5.9 +/- 0.72 0.050 / 0.060 G09 175.6 50.1 6.9 +/- 0.92 8.6 +/- 0.92 0.050 / 0.040 G11 136.8 25.3 6.7 +/- 2.05 13.0 +/- 2.05 0.040 / 0.060 G23 159.9 23.9 7.3 +/- 2.14 14.6 +/- 2.14 0.120 / 0.140 G27 42.2 20.0 4.1 +/- 2.29 9.1 +/- 2.29 0.130 / 0.140 G28 249.6 35.0 7.4 +/- 1.59 11.7 +/- 1.59 0.140 / 0.210 G30 313.7 44.7 4.8 +/- 0.72 6.5 +/- 0.72 0.130 / 0.160