PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/02-02:13:00 G10 262.1 35.2 12.8 +/- 0.84 20.2 +/- 0.84 0.240 / 0.470 G13 44.3 21.8 7.6 +/- 1.50 15.9 +/- 1.50 0.150 / 0.380 G15 66.5 53.4 9.4 +/- 0.65 11.4 +/- 0.65 0.150 / 0.210 G16 282.2 13.7 9.1 +/- 2.03 23.4 +/- 2.03 0.150 / 0.220 G20 281.7 53.0 12.3 +/- 1.70 15.0 +/- 1.70 0.050 / 0.030 G21 350.7 68.3 10.3 +/- 0.82 11.0 +/- 0.82 0.040 / 0.040 G24 123.3 11.6 11.0 +/- 1.86 29.7 +/- 1.86 0.040 / 0.060 G27 320.5 15.2 6.5 +/- 1.44 16.2 +/- 1.44 0.050 / 0.070 G29 167.8 37.1 11.9 +/- 1.62 18.1 +/- 1.62 0.280 / 0.300