PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/26-06:57:50 G01 117.6 18.9 4.2 +/- 1.04 9.4 +/- 1.04 0.120 / 0.190 G07 86.9 64.6 5.0 +/- 0.74 5.5 +/- 0.74 0.120 / 0.180 G08 43.6 27.7 1.6 +/- 2.55 2.9 +/- 2.55 0.030 / 0.030 G09 173.7 20.4 5.3 +/- 2.61 11.5 +/- 2.61 0.030 / 0.030 G11 102.4 40.7 5.5 +/- 0.58 7.9 +/- 0.58 0.030 / 0.040 G13 316.7 21.1 2.3 +/- 2.37 4.9 +/- 2.37 0.030 / 0.030 G17 201.1 28.4 5.1 +/- 1.32 9.2 +/- 1.32 0.270 / 0.390 G18 90.2 21.2 4.8 +/- 1.42 10.2 +/- 1.42 0.140 / 0.280 G28 293.5 57.2 4.7 +/- 1.20 5.5 +/- 1.20 0.150 / 0.240 G30 345.7 68.9 3.7 +/- 0.60 4.0 +/- 0.60 0.150 / 0.260