PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/03-20:42:20 G02 203.8 36.6 18.7 +/- 2.08 28.8 +/- 2.08 0.090 / 0.140 G06 153.1 71.8 16.4 +/- 0.80 17.2 +/- 0.80 0.090 / 0.150 G12 309.0 17.9 11.9 +/- 0.93 27.6 +/- 0.93 0.070 / 0.100 G17 35.6 49.7 12.7 +/- 0.95 16.1 +/- 0.95 0.060 / 0.100 G19 0.7 65.0 14.0 +/- 0.53 15.3 +/- 0.53 0.030 / 0.050 G24 295.4 39.3 13.5 +/- 0.95 19.9 +/- 0.95 0.030 / 0.050 G28 104.4 29.8 14.7 +/- 0.75 25.8 +/- 0.75 0.070 / 0.100