PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/02/17-14:43:00 G08 272.2 18.6 7.6 +/- 1.03 17.3 +/- 1.03 0.090 / 0.200 G10 56.2 59.6 7.5 +/- 0.77 8.5 +/- 0.77 0.090 / 0.140 G11 314.6 13.5 5.0 +/- 3.07 12.9 +/- 3.07 0.070 / 0.090 G14 260.4 63.4 9.7 +/- 1.32 10.7 +/- 1.32 0.060 / 0.100 G21 153.5 15.4 10.6 +/- 2.59 26.1 +/- 2.59 0.130 / 0.260 G24 40.9 12.3 6.1 +/- 2.65 16.1 +/- 2.65 0.170 / 0.310 G27 232.6 17.1 6.8 +/- 2.01 16.1 +/- 2.01 0.050 / 0.040 G31 178.4 28.6 9.8 +/- 1.16 17.8 +/- 1.16 0.040 / 0.040 G32 333.4 75.0 8.0 +/- 0.67 8.3 +/- 0.67 0.130 / 0.140