PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/06-19:42:30 G02 56.8 35.3 9.2 +/- 1.53 14.6 +/- 1.53 0.060 / 0.060 G05 61.0 63.0 8.8 +/- 0.39 9.7 +/- 0.39 0.060 / 0.100 G12 185.0 35.5 11.0 +/- 1.02 17.2 +/- 1.02 0.090 / 0.330 G13 128.2 13.7 12.1 +/- 2.23 31.0 +/- 2.23 0.110 / 0.400 G15 164.8 11.1 2.5 +/- 27.90 6.9 +/- 27.90 0.130 / 0.270 G21 269.9 15.3 9.4 +/- 1.91 23.3 +/- 1.91 0.190 / 0.260 G25 241.0 53.4 9.5 +/- 3.64 11.5 +/- 3.64 0.120 / 0.320 G29 327.7 53.0 10.1 +/- 0.65 12.3 +/- 0.65 0.190 / 0.390