PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/08-16:13:00 G01 124.5 13.8 11.0 +/- 2.09 28.1 +/- 2.09 0.030 / 0.050 G07 61.8 69.2 9.6 +/- 0.39 10.2 +/- 0.39 0.030 / 0.050 G08 48.8 38.2 8.7 +/- 0.41 13.0 +/- 0.41 0.030 / 0.040 G09 177.5 32.2 11.4 +/- 1.66 19.1 +/- 1.66 0.030 / 0.040 G11 115.2 37.0 11.5 +/- 0.81 17.6 +/- 0.81 0.040 / 0.060 G13 320.2 14.3 7.2 +/- 1.69 18.3 +/- 1.69 0.040 / 0.060 G17 201.1 16.3 11.3 +/- 1.30 27.3 +/- 1.30 0.090 / 0.170 G18 100.9 18.1 10.9 +/- 1.50 25.1 +/- 1.50 0.090 / 0.160 G28 281.6 54.6 10.9 +/- 0.95 13.0 +/- 0.95 0.050 / 0.060 G30 337.3 63.4 9.5 +/- 0.63 10.5 +/- 0.63 0.060 / 0.060