PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/02/24-22:58:00 G01 109.1 24.0 10.6 +/- 1.15 21.1 +/- 1.15 0.030 / 0.040 G07 106.2 55.8 9.8 +/- 0.80 11.6 +/- 0.80 0.030 / 0.040 G08 41.8 20.5 7.4 +/- 3.26 16.1 +/- 3.26 0.200 / 0.350 G09 175.4 16.2 11.1 +/- 1.89 26.9 +/- 1.89 0.180 / 0.360 G11 89.9 42.6 10.1 +/- 0.92 14.0 +/- 0.92 0.080 / 0.140 G13 311.1 27.8 6.7 +/- 1.59 12.3 +/- 1.59 0.070 / 0.160 G17 203.7 37.4 9.8 +/- 1.10 14.9 +/- 1.10 0.050 / 0.050 G18 79.1 23.0 9.3 +/- 1.28 19.0 +/- 1.28 0.050 / 0.070 G28 306.5 59.0 8.2 +/- 1.36 9.4 +/- 1.36 0.120 / 0.130 G30 13.0 76.8 8.3 +/- 0.79 8.6 +/- 0.79 0.100 / 0.150