PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/03/24-05:58:10 G02 59.7 31.8 1.1 +/- 1.47 1.9 +/- 1.47 0.100 / 0.120 G05 58.8 60.7 3.2 +/- 0.51 3.6 +/- 0.51 0.070 / 0.110 G12 186.0 34.8 4.3 +/- 0.86 6.8 +/- 0.86 0.050 / 0.090 G13 129.8 14.2 5.3 +/- 2.83 13.5 +/- 2.83 0.050 / 0.080 G15 163.6 11.6 -0.4 +/- 8.83 -1.2 +/- 8.83 0.190 / 0.350 G20 212.9 43.1 5.7 +/- 0.88 7.9 +/- 0.88 0.230 / 0.390 G21 270.5 17.2 4.4 +/- 3.24 10.5 +/- 3.24 0.040 / 0.030 G25 240.5 52.9 4.5 +/- 3.28 5.5 +/- 3.28 0.030 / 0.030 G29 327.7 53.6 2.2 +/- 0.77 2.6 +/- 0.77 0.060 / 0.080