PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/02/26-03:12:40 G02 201.6 33.4 6.6 +/- 1.19 10.7 +/- 1.19 0.060 / 0.120 G06 167.3 64.5 4.2 +/- 0.42 4.5 +/- 0.42 0.070 / 0.110 G12 305.6 11.8 -0.0 +/- 11.64 -0.1 +/- 11.64 0.170 / 0.200 G17 31.1 53.1 3.0 +/- 0.96 3.7 +/- 0.96 0.210 / 0.230 G19 355.0 66.8 1.8 +/- 0.32 1.9 +/- 0.32 0.030 / 0.040 G24 301.8 36.0 2.6 +/- 1.92 4.1 +/- 1.92 0.030 / 0.040 G28 99.9 32.6 3.0 +/- 1.09 4.9 +/- 1.09 0.030 / 0.030