PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/11/17-04:43:10 G07 333.9 58.2 3.7 +/- 0.53 4.3 +/- 0.53 0.090 / 0.140 G08 98.0 51.4 8.7 +/- 0.51 10.7 +/- 0.51 0.150 / 0.180 G09 191.6 74.1 6.6 +/- 0.58 6.9 +/- 0.58 0.030 / 0.030 G11 145.6 12.6 6.6 +/- 3.26 17.3 +/- 3.26 0.030 / 0.040 G16 46.1 12.5 1.9 +/- 0.96 5.1 +/- 0.96 0.150 / 0.270 G23 155.8 43.5 9.3 +/- 0.85 12.8 +/- 0.85 0.090 / 0.220 G27 54.6 31.0 4.2 +/- 1.88 7.2 +/- 1.88 0.030 / 0.040 G28 237.4 30.0 5.2 +/- 1.36 9.1 +/- 1.36 0.030 / 0.040 G30 301.9 35.2 3.8 +/- 1.03 6.0 +/- 1.03 0.080 / 0.080