PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/08-05:42:40 G07 342.9 61.6 4.5 +/- 0.72 5.0 +/- 0.72 0.080 / 0.090 G08 93.0 52.9 6.9 +/- 0.89 8.4 +/- 0.89 0.080 / 0.080 G09 181.9 67.2 6.3 +/- 0.53 6.8 +/- 0.53 0.040 / 0.040 G11 144.3 16.7 6.1 +/- 2.02 14.6 +/- 2.02 0.040 / 0.050 G23 156.7 36.0 6.3 +/- 0.96 9.8 +/- 0.96 0.250 / 0.360 G27 51.1 29.1 5.1 +/- 1.66 9.1 +/- 1.66 0.140 / 0.210 G28 238.6 26.1 6.2 +/- 1.88 11.8 +/- 1.88 0.040 / 0.030 G30 304.3 36.5 4.0 +/- 1.07 6.2 +/- 1.07 0.030 / 0.040