PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/04-17:43:00 G01 91.8 31.5 14.1 +/- 0.47 24.0 +/- 0.47 0.040 / 0.070 G07 124.2 47.1 14.0 +/- 1.51 18.4 +/- 1.51 0.040 / 0.060 G11 70.8 40.6 12.8 +/- 0.51 18.5 +/- 0.51 0.040 / 0.060 G13 296.2 35.5 14.3 +/- 0.82 22.6 +/- 0.82 0.040 / 0.060 G17 214.0 49.9 17.1 +/- 1.08 21.6 +/- 1.08 0.020 / 0.040 G18 65.4 24.2 12.2 +/- 0.72 24.3 +/- 0.72 0.020 / 0.040 G19 214.2 24.0 16.9 +/- 2.38 33.8 +/- 2.38 0.040 / 0.060 G28 346.6 61.8 11.9 +/- 0.50 13.3 +/- 0.50 0.040 / 0.050 G30 99.6 76.7 14.6 +/- 0.82 15.0 +/- 0.82 0.100 / 0.190