PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/11-19:43:00 G02 201.0 23.8 15.7 +/- 1.91 31.5 +/- 1.91 0.180 / 0.280 G06 167.3 58.8 15.1 +/- 1.16 17.3 +/- 1.16 0.230 / 0.380 G13 224.8 10.8 17.0 +/- 2.51 46.6 +/- 2.51 0.070 / 0.100 G17 23.1 58.6 13.1 +/- 0.39 15.1 +/- 0.39 0.090 / 0.120 G19 327.0 70.1 12.6 +/- 0.57 13.3 +/- 0.57 0.080 / 0.220 G24 307.2 32.5 10.5 +/- 1.27 17.5 +/- 1.27 0.080 / 0.200 G28 91.9 37.7 12.6 +/- 0.90 19.0 +/- 0.90 0.030 / 0.040 G30 157.5 11.4 15.7 +/- 1.99 42.6 +/- 1.99 0.030 / 0.050