PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/28-07:27:40 G01 41.4 16.9 3.8 +/- 2.14 9.1 +/- 2.14 0.110 / 0.170 G06 175.5 37.7 6.9 +/- 0.97 10.5 +/- 0.97 0.080 / 0.150 G13 237.7 22.7 6.8 +/- 2.29 14.1 +/- 2.29 0.150 / 0.130 G15 273.6 12.1 4.7 +/- 2.44 12.4 +/- 2.44 0.090 / 0.160 G17 7.0 69.3 5.7 +/- 0.30 6.0 +/- 0.30 0.080 / 0.110 G19 270.0 66.5 5.9 +/- 0.74 6.3 +/- 0.74 0.080 / 0.100 G24 315.2 22.6 3.1 +/- 1.70 6.4 +/- 1.70 0.040 / 0.030 G28 68.7 48.6 6.4 +/- 1.19 8.2 +/- 1.19 0.030 / 0.020 G30 154.9 29.8 7.7 +/- 0.98 13.5 +/- 0.98 0.040 / 0.060