PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/08-01:12:30 G10 247.7 24.3 12.3 +/- 1.66 24.4 +/- 1.66 0.160 / 0.620 G13 56.8 31.7 12.3 +/- 0.77 20.8 +/- 0.77 0.150 / 0.620 G15 97.0 58.6 14.2 +/- 0.67 16.4 +/- 0.67 0.070 / 0.190 G16 297.9 15.9 9.2 +/- 2.49 22.3 +/- 2.49 0.110 / 0.130 G20 259.9 39.5 12.1 +/- 1.23 17.7 +/- 1.23 0.050 / 0.060 G21 328.6 57.2 11.9 +/- 1.02 13.9 +/- 1.02 0.050 / 0.060 G26 269.6 17.0 13.0 +/- 1.48 30.9 +/- 1.48 0.040 / 0.050 G29 164.3 54.9 13.9 +/- 1.41 16.5 +/- 1.41 0.040 / 0.050