PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/04-15:57:50 G02 201.4 20.1 14.7 +/- 3.47 32.1 +/- 3.47 0.050 / 0.090 G06 167.1 57.3 12.3 +/- 0.66 14.4 +/- 0.66 0.040 / 0.100 G12 301.6 9.9 -9.2 +/- 9.21 -25.7 +/- 9.21 0.090 / 0.350 G13 225.8 12.0 12.3 +/- 3.97 32.7 +/- 3.97 0.130 / 0.240 G17 24.7 58.0 10.9 +/- 0.52 12.6 +/- 0.52 0.150 / 0.180 G19 316.9 70.2 10.7 +/- 0.55 11.3 +/- 0.55 0.160 / 0.340 G24 308.1 32.0 10.9 +/- 1.32 18.3 +/- 1.32 0.140 / 0.340 G28 89.5 38.9 10.2 +/- 0.65 15.1 +/- 0.65 0.080 / 0.150 G30 157.8 14.3 11.7 +/- 1.63 29.6 +/- 1.63 0.080 / 0.150