PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/07-07:27:50 G01 271.9 41.1 5.6 +/- 1.34 8.0 +/- 1.34 0.040 / 0.050 G03 315.6 28.5 2.6 +/- 1.16 4.6 +/- 1.16 0.040 / 0.050 G10 129.3 17.4 6.8 +/- 1.13 15.8 +/- 1.13 0.040 / 0.070 G11 251.1 20.4 7.6 +/- 2.22 16.4 +/- 2.22 0.040 / 0.060 G14 39.2 52.6 4.0 +/- 1.23 4.9 +/- 1.23 0.130 / 0.210 G18 235.3 39.7 6.5 +/- 1.09 9.5 +/- 1.09 0.120 / 0.210 G22 314.3 52.5 3.9 +/- 1.67 4.8 +/- 1.67 0.050 / 0.090 G25 53.0 16.8 2.6 +/- 1.68 6.1 +/- 1.68 0.060 / 0.080 G31 54.8 72.1 6.2 +/- 0.84 6.5 +/- 0.84 0.120 / 0.250 G32 64.6 31.4 3.8 +/- 0.56 6.5 +/- 0.56 0.110 / 0.210