PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/16-11:42:30 G08 273.4 21.0 6.2 +/- 3.26 13.4 +/- 3.26 0.140 / 0.240 G10 48.4 60.2 4.2 +/- 0.74 4.7 +/- 0.74 0.170 / 0.240 G14 252.6 62.5 5.9 +/- 0.58 6.6 +/- 0.58 0.040 / 0.020 G18 314.8 28.3 2.4 +/- 1.76 4.4 +/- 1.76 0.030 / 0.020 G20 88.1 41.2 4.2 +/- 0.68 6.1 +/- 0.68 0.220 / 0.460 G21 152.6 19.4 3.8 +/- 2.23 8.5 +/- 2.23 0.090 / 0.130 G24 42.1 13.5 2.4 +/- 3.58 6.3 +/- 3.58 0.030 / 0.020 G27 239.5 21.4 6.0 +/- 1.54 12.8 +/- 1.54 0.030 / 0.020 G31 181.2 21.2 5.0 +/- 1.21 10.7 +/- 1.21 0.060 / 0.090 G32 291.4 74.3 4.9 +/- 0.44 5.1 +/- 0.44 0.140 / 0.210