PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/01/24-04:13:00 G01 47.1 23.1 3.7 +/- 1.14 7.5 +/- 1.14 0.050 / 0.050 G06 179.4 26.4 6.0 +/- 1.82 11.4 +/- 1.82 0.050 / 0.050 G11 44.4 13.3 2.1 +/- 1.37 5.6 +/- 1.37 0.020 / 0.020 G13 247.6 28.1 6.3 +/- 2.46 11.4 +/- 2.46 0.030 / 0.020 G15 279.1 15.3 2.5 +/- 4.01 6.1 +/- 4.01 0.210 / 0.340 G17 330.7 77.0 5.2 +/- 0.29 5.3 +/- 0.29 0.120 / 0.270 G19 254.9 63.8 4.7 +/- 0.67 5.2 +/- 0.67 0.080 / 0.160 G24 319.0 10.4 -16.8 +/- 6.86 -46.4 +/- 6.86 0.080 / 0.140 G28 59.2 50.8 3.4 +/- 0.44 4.3 +/- 0.44 0.130 / 0.120 G30 150.4 34.0 6.1 +/- 1.04 9.8 +/- 1.04 0.110 / 0.160