PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/11-02:42:40 G02 59.3 32.5 7.0 +/- 0.89 11.7 +/- 0.89 0.050 / 0.110 G05 58.6 60.6 9.0 +/- 0.76 10.2 +/- 0.76 0.070 / 0.100 G12 184.9 33.6 11.9 +/- 2.11 19.3 +/- 2.11 0.050 / 0.100 G13 129.3 14.4 11.2 +/- 2.48 28.4 +/- 2.48 0.060 / 0.100 G15 164.3 11.3 8.4 +/- 19.97 22.7 +/- 19.97 0.030 / 0.040 G20 217.6 17.3 14.1 +/- 2.12 33.2 +/- 2.12 0.030 / 0.050 G21 270.2 16.3 10.4 +/- 3.64 25.1 +/- 3.64 0.050 / 0.060 G25 239.8 52.7 11.0 +/- 0.86 13.4 +/- 0.86 0.050 / 0.070 G29 327.1 52.8 9.6 +/- 1.05 11.7 +/- 1.05 0.170 / 0.550