PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/10-20:57:40 G10 251.9 28.0 21.0 +/- 2.39 38.4 +/- 2.39 0.030 / 0.060 G13 52.0 28.8 12.0 +/- 1.45 21.6 +/- 1.45 0.030 / 0.060 G15 93.2 60.3 16.6 +/- 0.43 18.8 +/- 0.43 0.150 / 0.550 G16 293.4 15.6 13.0 +/- 4.29 31.9 +/- 4.29 0.190 / 0.730 G20 271.9 51.8 17.4 +/- 0.96 21.5 +/- 0.96 0.070 / 0.220 G21 335.7 61.2 15.3 +/- 0.45 17.2 +/- 0.45 0.060 / 0.190 G26 266.0 14.9 19.6 +/- 2.30 48.8 +/- 2.30 0.040 / 0.050 G29 165.3 48.8 19.1 +/- 0.53 24.4 +/- 0.53 0.030 / 0.060