PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/10-18:28:00 G02 59.2 34.6 11.7 +/- 1.18 18.7 +/- 1.18 0.120 / 0.270 G05 56.5 61.4 14.2 +/- 0.79 16.0 +/- 0.79 0.160 / 0.260 G12 181.8 27.3 17.4 +/- 2.64 32.2 +/- 2.64 0.020 / 0.050 G13 125.8 16.9 16.2 +/- 1.81 38.4 +/- 1.81 0.030 / 0.040 G15 166.9 11.5 17.3 +/- 1.87 46.8 +/- 1.87 0.060 / 0.130 G21 273.4 18.7 15.8 +/- 1.65 36.0 +/- 1.65 0.040 / 0.130 G25 230.0 49.6 16.6 +/- 0.74 21.0 +/- 0.74 0.080 / 0.240 G29 329.5 56.2 14.1 +/- 0.67 16.6 +/- 0.67 0.070 / 0.320