PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/05-19:12:30 G02 213.0 54.5 17.9 +/- 0.95 21.5 +/- 0.95 0.050 / 0.100 G06 68.5 76.3 15.5 +/- 0.75 15.9 +/- 0.75 0.040 / 0.120 G12 317.9 34.7 14.2 +/- 1.78 22.6 +/- 1.78 0.050 / 0.060 G17 53.4 35.7 13.4 +/- 1.16 20.9 +/- 1.16 0.040 / 0.070 G19 30.6 54.0 15.2 +/- 0.45 18.3 +/- 0.45 0.060 / 0.080 G24 270.0 42.6 14.4 +/- 0.74 20.1 +/- 0.74 0.060 / 0.080 G28 119.6 16.9 15.2 +/- 2.03 36.0 +/- 2.03 0.090 / 0.360