PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/10-19:12:40 G02 51.7 39.5 8.4 +/- 2.36 12.4 +/- 2.36 0.040 / 0.060 G05 73.8 67.3 10.3 +/- 0.41 11.0 +/- 0.41 0.070 / 0.050 G12 186.2 42.0 10.5 +/- 0.87 14.8 +/- 0.87 0.190 / 0.440 G13 132.7 9.8 -6.3 +/- 13.82 -17.5 +/- 13.82 0.080 / 0.060 G25 251.8 56.4 8.7 +/- 1.78 10.2 +/- 1.78 0.080 / 0.070 G29 323.6 47.4 9.8 +/- 0.86 12.8 +/- 0.86 0.050 / 0.070