PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/02-16:57:20 G02 208.1 43.9 11.0 +/- 1.76 15.1 +/- 1.76 0.080 / 0.160 G06 114.6 78.3 10.4 +/- 0.33 10.6 +/- 0.33 0.060 / 0.120 G12 314.4 27.8 10.9 +/- 1.15 20.0 +/- 1.15 0.050 / 0.090 G17 46.4 40.7 10.2 +/- 0.72 14.6 +/- 0.72 0.050 / 0.080 G19 15.5 60.3 10.2 +/- 0.38 11.6 +/- 0.38 0.080 / 0.180 G24 282.5 42.6 9.9 +/- 1.19 13.8 +/- 1.19 0.070 / 0.250 G28 112.3 23.8 8.6 +/- 1.43 17.2 +/- 1.43 0.050 / 0.090