PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/09-17:28:00 G02 81.3 17.0 10.9 +/- 1.12 25.9 +/- 1.12 0.090 / 0.170 G05 44.4 38.1 9.5 +/- 0.31 14.3 +/- 0.31 0.090 / 0.190 G13 100.5 32.3 12.6 +/- 0.96 21.1 +/- 0.96 0.060 / 0.130 G15 150.8 34.8 13.9 +/- 1.00 22.1 +/- 1.00 0.060 / 0.120 G20 233.2 21.2 11.0 +/- 1.69 23.5 +/- 1.69 0.040 / 0.060 G21 295.8 35.1 10.3 +/- 1.64 16.4 +/- 1.64 0.040 / 0.060 G25 207.2 26.0 11.5 +/- 1.77 21.9 +/- 1.77 0.060 / 0.140 G26 307.2 17.6 8.8 +/- 0.91 20.5 +/- 0.91 0.060 / 0.130 G29 2.7 83.7 10.0 +/- 0.72 10.1 +/- 0.72 0.040 / 0.090