PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/10-17:12:40 G01 39.9 14.4 8.7 +/- 2.96 21.8 +/- 2.96 0.070 / 0.140 G06 172.6 43.5 12.3 +/- 0.56 16.9 +/- 0.56 0.070 / 0.160 G13 235.3 20.3 11.9 +/- 3.83 26.0 +/- 3.83 0.050 / 0.050 G15 270.8 11.1 11.3 +/- 1.38 30.9 +/- 1.38 0.050 / 0.060 G17 5.6 68.7 10.6 +/- 0.58 11.3 +/- 0.58 0.150 / 0.150 G19 279.2 68.1 12.1 +/- 0.94 12.9 +/- 0.94 0.100 / 0.170 G24 315.2 22.4 11.1 +/- 2.91 23.1 +/- 2.91 0.240 / 0.430 G28 75.0 45.6 10.2 +/- 1.20 13.6 +/- 1.20 0.210 / 0.370 G30 155.5 25.6 12.1 +/- 1.48 23.3 +/- 1.48 0.130 / 0.360