PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/12-06:12:50 G01 303.4 35.6 7.2 +/- 2.11 11.4 +/- 2.11 0.080 / 0.110 G10 110.2 36.9 6.5 +/- 0.60 10.0 +/- 0.60 0.080 / 0.110 G11 277.0 27.9 6.0 +/- 1.04 10.9 +/- 1.04 0.070 / 0.100 G14 359.3 65.9 5.3 +/- 0.62 5.8 +/- 0.62 0.050 / 0.080 G18 270.8 49.9 10.4 +/- 6.15 13.1 +/- 6.15 0.060 / 0.120 G20 121.2 22.0 10.8 +/- 1.31 22.7 +/- 1.31 0.060 / 0.120 G22 311.4 30.2 6.7 +/- 1.03 11.6 +/- 1.03 0.030 / 0.040 G25 77.9 17.5 6.0 +/- 1.55 14.1 +/- 1.55 0.040 / 0.040 G31 155.3 70.9 7.0 +/- 0.62 7.4 +/- 0.62 0.090 / 0.120 G32 42.2 48.0 3.9 +/- 1.07 5.0 +/- 1.07 0.070 / 0.130