PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/02-02:42:30 G05 46.3 23.8 7.9 +/- 0.67 15.9 +/- 0.67 0.050 / 0.090 G13 88.4 35.8 11.1 +/- 0.74 17.4 +/- 0.74 0.050 / 0.110 G15 137.4 45.1 14.1 +/- 0.89 19.0 +/- 0.89 0.070 / 0.110 G20 242.3 40.2 11.8 +/- 0.48 17.1 +/- 0.48 0.070 / 0.130 G21 303.9 40.4 10.5 +/- 0.98 15.1 +/- 0.98 0.050 / 0.140 G25 204.8 18.8 11.7 +/- 2.05 26.5 +/- 2.05 0.060 / 0.120 G26 295.9 20.8 9.7 +/- 1.59 21.0 +/- 1.59 0.040 / 0.060 G29 138.6 84.1 10.8 +/- 0.98 10.8 +/- 0.98 0.040 / 0.050