PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/05-21:28:10 G02 217.6 61.9 16.6 +/- 1.37 18.5 +/- 1.37 0.040 / 0.080 G06 53.0 71.8 13.8 +/- 0.39 14.5 +/- 0.39 0.050 / 0.080 G12 319.5 39.0 12.9 +/- 0.70 19.1 +/- 0.70 0.070 / 0.090 G17 57.6 33.1 10.5 +/- 0.36 17.4 +/- 0.36 0.070 / 0.110 G19 39.2 49.6 11.4 +/- 0.50 14.4 +/- 0.50 0.040 / 0.080 G24 262.4 41.2 16.1 +/- 1.70 23.0 +/- 1.70 0.040 / 0.090 G28 123.8 12.2 14.8 +/- 0.69 39.3 +/- 0.69 0.040 / 0.050