PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/12/07-11:42:30 G02 24.0 63.5 3.6 +/- 0.57 3.9 +/- 0.57 0.030 / 0.040 G05 154.5 51.0 6.6 +/- 0.84 8.2 +/- 0.84 0.030 / 0.040 G06 46.7 29.5 2.6 +/- 2.03 4.7 +/- 2.03 0.030 / 0.020 G12 239.7 78.2 5.5 +/- 0.36 5.6 +/- 0.36 0.020 / 0.020 G19 91.5 15.6 4.9 +/- 1.93 12.0 +/- 1.93 0.350 / 0.550 G20 198.7 13.5 3.3 +/- 4.26 8.4 +/- 4.26 0.220 / 0.350 G24 217.0 11.0 0.5 +/- 17.22 1.4 +/- 17.22 0.060 / 0.060 G25 309.5 45.3 5.2 +/- 1.24 7.0 +/- 1.24 0.070 / 0.060 G29 301.2 23.7 4.5 +/- 1.00 9.1 +/- 1.00 0.390 / 0.510