PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/11/27-02:28:00 G07 348.4 63.2 4.9 +/- 0.66 5.4 +/- 0.66 0.090 / 0.080 G08 81.7 51.8 5.3 +/- 0.58 6.6 +/- 0.58 0.070 / 0.090 G09 176.6 59.9 6.4 +/- 0.61 7.2 +/- 0.61 0.040 / 0.040 G11 142.8 19.3 4.7 +/- 1.42 10.4 +/- 1.42 0.040 / 0.040 G23 158.3 32.7 5.8 +/- 1.12 9.6 +/- 1.12 0.150 / 0.210 G27 47.5 26.1 3.6 +/- 1.78 6.9 +/- 1.78 0.090 / 0.210 G28 241.8 28.5 5.9 +/- 1.30 10.6 +/- 1.30 0.120 / 0.260 G30 306.9 38.3 3.7 +/- 1.74 5.5 +/- 1.74 0.120 / 0.350