PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/04/09-01:43:00 G02 350.5 77.5 8.0 +/- 0.84 8.2 +/- 0.84 0.100 / 0.160 G05 163.0 34.8 12.1 +/- 1.75 19.3 +/- 1.75 0.130 / 0.190 G06 40.4 43.2 7.9 +/- 1.45 10.9 +/- 1.45 0.100 / 0.130 G12 312.2 68.8 8.7 +/- 0.66 9.2 +/- 0.66 0.120 / 0.150 G17 86.7 10.0 11.7 +/- 5.59 32.6 +/- 5.59 0.070 / 0.090 G19 75.3 26.6 10.7 +/- 1.29 20.2 +/- 1.29 0.060 / 0.130 G24 226.4 21.8 12.9 +/- 1.76 27.1 +/- 1.76 0.040 / 0.030 G25 316.7 30.5 9.7 +/- 1.44 16.8 +/- 1.44 0.030 / 0.040 G29 288.2 13.2 10.3 +/- 1.79 26.7 +/- 1.79 0.050 / 0.070