PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/11/25-06:42:40 G01 94.6 30.6 5.5 +/- 1.89 9.5 +/- 1.89 0.030 / 0.040 G07 121.8 48.0 6.0 +/- 0.78 7.8 +/- 0.78 0.030 / 0.050 G08 42.1 10.0 1.9 +/- 2.37 5.3 +/- 2.37 0.030 / 0.040 G11 73.6 40.6 4.4 +/- 1.24 6.3 +/- 1.24 0.030 / 0.030 G13 300.2 33.6 2.3 +/- 0.67 3.8 +/- 0.67 0.040 / 0.040 G17 211.7 51.2 6.7 +/- 0.85 8.3 +/- 0.85 0.040 / 0.040 G19 212.8 24.9 4.8 +/- 1.43 9.4 +/- 1.43 0.080 / 0.530 G28 343.0 61.8 3.0 +/- 0.51 3.3 +/- 0.51 0.120 / 0.770 G30 89.8 77.5 3.8 +/- 0.32 3.9 +/- 0.32 0.090 / 0.090