PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/03-22:43:00 G05 48.3 18.4 6.2 +/- 0.67 14.2 +/- 0.67 0.070 / 0.160 G10 235.1 11.2 11.0 +/- 32.96 30.0 +/- 32.96 0.070 / 0.160 G13 77.7 36.4 9.0 +/- 0.73 13.9 +/- 0.73 0.140 / 0.460 G15 131.5 50.7 10.9 +/- 0.69 13.6 +/- 0.69 0.100 / 0.350 G16 314.2 12.8 8.2 +/- 1.95 21.5 +/- 1.95 0.130 / 0.380 G20 241.3 12.5 10.9 +/- 1.18 28.7 +/- 1.18 0.180 / 0.360 G21 310.8 45.1 8.2 +/- 1.20 11.0 +/- 1.20 0.230 / 0.270 G25 199.7 11.9 11.8 +/- 3.45 31.6 +/- 3.45 0.130 / 0.180 G26 287.5 21.1 9.3 +/- 1.92 20.0 +/- 1.92 0.040 / 0.080 G29 154.8 75.6 9.3 +/- 0.90 9.6 +/- 0.90 0.040 / 0.090