PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/02/11-15:58:00 G01 314.8 25.5 6.0 +/- 2.09 11.7 +/- 2.09 0.120 / 0.140 G10 93.3 47.9 8.0 +/- 1.11 10.4 +/- 1.11 0.120 / 0.120 G11 296.2 25.2 5.9 +/- 0.66 11.4 +/- 0.66 0.030 / 0.040 G14 323.7 70.4 6.8 +/- 0.59 7.2 +/- 0.59 0.030 / 0.040 G22 305.6 18.6 6.4 +/- 0.88 14.7 +/- 0.88 0.170 / 0.270 G25 93.2 12.8 10.4 +/- 2.67 27.2 +/- 2.67 0.260 / 0.200 G31 172.7 53.3 10.4 +/- 0.79 12.6 +/- 0.79 0.040 / 0.040 G32 24.0 59.9 7.0 +/- 0.77 7.9 +/- 0.77 0.040 / 0.030