PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/09-14:58:00 G01 103.0 27.5 12.4 +/- 0.76 22.9 +/- 0.76 0.020 / 0.030 G07 112.6 55.3 11.3 +/- 0.63 13.4 +/- 0.63 0.020 / 0.030 G08 41.7 16.8 7.6 +/- 1.26 18.1 +/- 1.26 0.070 / 0.150 G11 83.0 42.5 10.5 +/- 0.68 14.6 +/- 0.68 0.060 / 0.130 G13 306.2 31.1 8.6 +/- 1.15 14.8 +/- 1.15 0.040 / 0.080 G17 207.7 41.4 12.3 +/- 0.80 17.6 +/- 0.80 0.060 / 0.100 G18 75.9 24.6 10.8 +/- 1.12 21.4 +/- 1.12 0.030 / 0.050 G19 210.6 14.2 1.2 +/- 18.05 3.0 +/- 18.05 0.030 / 0.050 G28 325.7 61.5 8.7 +/- 0.92 9.8 +/- 0.92 0.040 / 0.060 G30 40.3 79.6 9.7 +/- 0.79 9.9 +/- 0.79 0.060 / 0.060