PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/08-14:43:10 G02 213.3 49.3 11.5 +/- 0.44 14.6 +/- 0.44 0.080 / 0.090 G06 74.6 77.4 10.8 +/- 0.36 11.0 +/- 0.36 0.070 / 0.110 G12 317.6 34.6 7.7 +/- 2.00 12.3 +/- 2.00 0.050 / 0.070 G17 53.5 34.8 9.4 +/- 1.41 14.9 +/- 1.41 0.050 / 0.060 G19 25.9 56.1 10.1 +/- 1.42 11.9 +/- 1.42 0.030 / 0.020 G24 270.0 43.1 10.0 +/- 2.54 13.8 +/- 2.54 0.020 / 0.020 G28 118.4 18.5 11.6 +/- 0.78 26.5 +/- 0.78 0.050 / 0.040