PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/10-04:58:10 G10 305.5 54.3 3.6 +/- 1.07 4.3 +/- 1.07 0.070 / 0.090 G14 212.4 13.3 5.1 +/- 3.59 13.2 +/- 3.59 0.060 / 0.080 G15 45.7 24.2 2.8 +/- 0.71 5.7 +/- 0.71 0.030 / 0.040 G20 21.3 62.8 4.3 +/- 0.47 4.8 +/- 0.47 0.040 / 0.040 G21 110.5 71.1 6.0 +/- 1.42 6.3 +/- 1.42 0.140 / 0.520 G24 90.9 28.2 4.8 +/- 0.59 8.7 +/- 0.59 0.130 / 0.580 G27 294.0 36.3 4.6 +/- 0.66 7.2 +/- 0.66 0.050 / 0.050 G32 212.8 39.2 8.0 +/- 0.94 11.8 +/- 0.94 0.050 / 0.040