PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/11/25-07:12:30 G02 199.5 22.1 5.2 +/- 1.99 11.0 +/- 1.99 0.120 / 0.220 G06 169.1 54.1 7.4 +/- 0.91 8.8 +/- 0.91 0.170 / 0.190 G13 225.6 13.5 6.1 +/- 6.99 15.8 +/- 6.99 0.060 / 0.070 G17 22.6 59.5 4.5 +/- 0.58 5.1 +/- 0.58 0.060 / 0.060 G19 330.0 71.5 2.9 +/- 0.45 3.1 +/- 0.45 0.050 / 0.040 G24 310.4 28.3 1.9 +/- 0.96 3.5 +/- 0.96 0.050 / 0.050 G28 81.2 46.7 4.5 +/- 1.45 6.0 +/- 1.45 0.340 / 0.290 G30 158.4 17.8 6.1 +/- 1.64 14.2 +/- 1.64 0.340 / 0.250