PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/10-18:58:00 G10 253.1 29.0 13.9 +/- 1.05 24.9 +/- 1.05 0.030 / 0.050 G13 50.9 27.9 11.3 +/- 0.82 20.8 +/- 0.82 0.040 / 0.060 G15 87.4 59.3 13.6 +/- 0.61 15.5 +/- 0.61 0.200 / 0.520 G16 292.6 15.3 10.0 +/- 4.54 24.8 +/- 4.54 0.150 / 0.580 G20 273.8 52.6 14.5 +/- 0.89 17.7 +/- 0.89 0.070 / 0.130 G21 338.7 62.6 13.3 +/- 0.51 14.8 +/- 0.51 0.060 / 0.150 G26 265.6 14.4 11.5 +/- 1.64 29.1 +/- 1.64 0.030 / 0.040 G29 165.3 46.9 14.8 +/- 0.97 19.4 +/- 0.97 0.030 / 0.040