PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/02/09-03:43:10 G01 38.4 11.3 4.7 +/- 4.41 12.6 +/- 4.41 0.050 / 0.070 G02 198.9 16.2 5.9 +/- 1.66 14.4 +/- 1.66 0.050 / 0.060 G06 175.8 44.4 6.1 +/- 0.77 8.3 +/- 0.77 0.020 / 0.030 G13 233.0 17.6 3.3 +/- 3.40 7.8 +/- 3.40 0.030 / 0.020 G17 11.0 65.9 3.1 +/- 0.54 3.4 +/- 0.54 0.370 / 0.200 G19 301.4 71.4 3.0 +/- 0.46 3.1 +/- 0.46 0.310 / 0.300 G24 314.3 23.9 1.2 +/- 1.42 2.5 +/- 1.42 0.060 / 0.060 G28 80.8 42.9 3.9 +/- 1.04 5.5 +/- 1.04 0.050 / 0.080 G30 154.9 17.2 6.9 +/- 1.80 16.2 +/- 1.80 0.120 / 0.130