PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/06-05:27:40 G10 246.7 23.1 10.9 +/- 2.40 22.3 +/- 2.40 0.110 / 0.440 G13 58.4 32.6 10.1 +/- 0.33 16.9 +/- 0.33 0.130 / 0.510 G15 95.6 57.6 11.3 +/- 0.50 13.1 +/- 0.50 0.040 / 0.050 G16 299.8 15.6 7.6 +/- 1.81 18.7 +/- 1.81 0.050 / 0.060 G20 300.6 70.4 10.9 +/- 0.58 11.5 +/- 0.58 0.050 / 0.070 G21 327.9 56.8 9.4 +/- 0.83 11.0 +/- 0.83 0.050 / 0.060 G26 271.1 17.4 9.7 +/- 2.39 22.8 +/- 2.39 0.060 / 0.130 G29 163.6 55.7 11.0 +/- 1.03 13.0 +/- 1.03 0.060 / 0.150