PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/12/10-03:12:40 G07 335.3 58.7 4.0 +/- 0.75 4.6 +/- 0.75 0.110 / 0.120 G08 96.6 51.9 5.6 +/- 0.76 6.9 +/- 0.76 0.100 / 0.150 G09 191.2 73.0 8.0 +/- 0.57 8.3 +/- 0.57 0.100 / 0.520 G11 145.3 13.3 4.6 +/- 1.61 11.9 +/- 1.61 0.110 / 0.700 G16 46.8 10.2 2.8 +/- 3.50 7.6 +/- 3.50 0.040 / 0.040 G23 156.1 41.5 6.4 +/- 0.43 9.0 +/- 0.43 0.030 / 0.030 G27 53.3 30.3 4.5 +/- 1.62 7.8 +/- 1.62 0.030 / 0.020 G28 238.5 31.1 4.8 +/- 1.89 8.2 +/- 1.89 0.040 / 0.030 G30 303.6 36.9 4.4 +/- 1.37 6.7 +/- 1.37 0.050 / 0.030