PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/02/10-05:28:10 G02 219.3 66.6 4.6 +/- 0.61 4.9 +/- 0.61 0.350 / 0.410 G06 51.6 73.7 3.2 +/- 0.40 3.3 +/- 0.40 0.230 / 0.520 G12 319.4 38.4 2.3 +/- 0.67 3.5 +/- 0.67 0.040 / 0.020 G17 60.3 30.8 2.2 +/- 0.76 3.7 +/- 0.76 0.040 / 0.020 G19 44.7 46.1 2.4 +/- 0.92 3.2 +/- 0.92 0.080 / 0.080 G24 261.1 40.4 4.9 +/- 4.03 7.0 +/- 4.03 0.070 / 0.080 G28 125.6 9.9 3.5 +/- 8.60 9.8 +/- 8.60 0.050 / 0.060