PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/06-23:12:30 G10 248.7 25.2 13.3 +/- 1.66 25.9 +/- 1.66 0.030 / 0.040 G13 55.6 31.0 8.9 +/- 0.96 15.3 +/- 0.96 0.040 / 0.050 G15 96.6 59.1 10.4 +/- 0.50 11.9 +/- 0.50 0.110 / 0.320 G16 296.3 16.1 8.2 +/- 1.34 20.0 +/- 1.34 0.150 / 0.380 G20 254.5 24.4 7.4 +/- 4.27 14.6 +/- 4.27 0.060 / 0.120 G21 329.7 57.9 9.1 +/- 0.76 10.5 +/- 0.76 0.070 / 0.120 G26 268.4 16.6 12.7 +/- 2.17 30.4 +/- 2.17 0.030 / 0.040 G29 164.6 53.7 11.3 +/- 0.59 13.6 +/- 0.59 0.030 / 0.030