PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/10-04:57:40 G02 37.3 51.5 5.2 +/- 0.94 6.5 +/- 0.94 0.030 / 0.030 G05 129.7 65.2 7.4 +/- 0.54 8.1 +/- 0.54 0.040 / 0.040 G06 53.9 17.6 2.7 +/- 1.99 6.4 +/- 1.99 0.050 / 0.040 G12 199.5 65.9 6.7 +/- 0.46 7.2 +/- 0.46 0.030 / 0.040 G25 288.1 57.3 7.5 +/- 1.97 8.8 +/- 1.97 0.090 / 0.150 G29 312.7 35.4 4.2 +/- 0.61 6.5 +/- 0.61 0.080 / 0.140