PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/28-02:57:40 G08 318.8 12.7 5.9 +/- 3.67 15.6 +/- 3.67 0.050 / 0.060 G10 316.1 57.4 7.7 +/- 1.48 8.9 +/- 1.48 0.050 / 0.070 G14 213.1 21.2 10.6 +/- 3.72 22.7 +/- 3.72 0.060 / 0.040 G15 45.6 17.9 6.4 +/- 2.89 14.9 +/- 2.89 0.030 / 0.030 G20 16.7 63.7 9.1 +/- 0.71 10.1 +/- 0.71 0.040 / 0.040 G21 121.1 66.5 10.3 +/- 0.50 11.2 +/- 0.50 0.040 / 0.040 G24 86.0 29.5 10.2 +/- 1.60 18.0 +/- 1.60 0.110 / 0.210 G27 289.0 37.2 12.7 +/- 1.50 19.3 +/- 1.50 0.100 / 0.180 G32 215.7 40.4 11.4 +/- 2.11 16.5 +/- 2.11 0.180 / 0.270