PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/22-19:42:40 G02 59.1 34.1 8.1 +/- 1.08 13.1 +/- 1.08 0.050 / 0.100 G05 57.0 60.7 9.6 +/- 0.75 10.8 +/- 0.75 0.050 / 0.120 G12 181.1 27.7 12.1 +/- 1.73 22.3 +/- 1.73 0.100 / 0.350 G13 126.8 16.0 12.6 +/- 2.66 30.6 +/- 2.66 0.120 / 0.320 G15 165.9 11.5 6.4 +/- 24.82 17.2 +/- 24.82 0.030 / 0.040 G21 271.9 17.0 10.5 +/- 2.15 24.8 +/- 2.15 0.040 / 0.050 G25 233.3 50.9 9.0 +/- 2.14 11.2 +/- 2.14 0.050 / 0.060 G29 328.0 54.3 7.7 +/- 0.89 9.2 +/- 0.89 0.040 / 0.060