PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/06-21:42:40 G02 32.8 55.7 10.5 +/- 0.73 12.5 +/- 0.73 0.050 / 0.040 G05 136.7 63.0 11.9 +/- 0.79 13.2 +/- 0.79 0.050 / 0.040 G06 54.7 13.8 7.4 +/- 1.44 18.9 +/- 1.44 0.050 / 0.040 G12 192.6 65.0 10.3 +/- 1.42 11.2 +/- 1.42 0.050 / 0.040 G19 99.8 11.4 9.6 +/- 1.95 25.8 +/- 1.95 0.040 / 0.060 G25 295.6 54.1 9.7 +/- 0.87 11.7 +/- 0.87 0.040 / 0.060 G29 307.3 27.4 8.3 +/- 1.25 15.3 +/- 1.25 0.040 / 0.060