PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/03/24-01:27:30 G02 201.9 33.8 9.5 +/- 1.47 15.3 +/- 1.47 0.230 / 0.190 G06 164.5 66.0 6.6 +/- 0.45 7.2 +/- 0.45 0.110 / 0.210 G12 306.1 12.7 7.1 +/- 1.84 18.6 +/- 1.84 0.060 / 0.040 G17 30.2 53.7 6.2 +/- 0.90 7.5 +/- 0.90 0.050 / 0.040 G19 355.1 66.7 5.4 +/- 0.31 5.8 +/- 0.31 0.030 / 0.030 G24 301.0 36.5 7.7 +/- 1.79 11.9 +/- 1.79 0.040 / 0.030 G28 100.5 32.3 6.0 +/- 0.90 10.0 +/- 0.90 0.070 / 0.110