PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/03/19-01:42:50 G02 201.2 31.4 11.3 +/- 1.31 19.2 +/- 1.31 0.100 / 0.170 G06 167.1 63.2 11.7 +/- 0.44 12.9 +/- 0.44 0.030 / 0.030 G12 304.6 10.8 -4.7 +/- 14.73 -12.9 +/- 14.73 0.030 / 0.030 G17 27.9 55.3 9.4 +/- 1.32 11.1 +/- 1.32 0.060 / 0.120 G19 349.3 67.9 9.2 +/- 0.45 9.9 +/- 0.45 0.050 / 0.110 G24 303.4 35.1 10.9 +/- 1.32 17.3 +/- 1.32 0.040 / 0.030 G28 98.0 33.9 10.8 +/- 0.93 17.5 +/- 0.93 0.030 / 0.030