PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/08-09:43:00 G02 202.8 28.9 4.9 +/- 1.09 8.7 +/- 1.09 0.120 / 0.080 G06 164.5 64.7 4.9 +/- 0.48 5.3 +/- 0.48 0.100 / 0.070 G12 305.4 13.0 3.0 +/- 2.79 7.9 +/- 2.79 0.140 / 0.220 G17 34.6 50.1 3.0 +/- 0.97 3.8 +/- 0.97 0.300 / 0.280 G19 342.5 68.3 2.6 +/- 0.35 2.8 +/- 0.35 0.040 / 0.030 G24 298.8 38.9 3.5 +/- 4.80 5.1 +/- 4.80 0.040 / 0.030 G28 97.6 35.1 4.2 +/- 0.69 6.6 +/- 0.69 0.040 / 0.020