PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/02-12:12:50 G07 42.1 69.7 3.8 +/- 1.00 4.0 +/- 1.00 0.050 / 0.060 G08 52.5 41.1 4.0 +/- 0.60 5.7 +/- 0.60 0.040 / 0.040 G09 176.9 37.8 6.3 +/- 0.98 9.6 +/- 0.98 0.260 / 0.320 G11 120.9 33.4 5.3 +/- 0.52 8.7 +/- 0.52 0.120 / 0.330 G17 199.3 12.1 2.5 +/- 10.05 6.6 +/- 10.05 0.070 / 0.110 G18 106.5 14.9 5.5 +/- 0.94 13.7 +/- 0.94 0.060 / 0.100 G23 160.6 10.6 2.4 +/- 2.36 6.6 +/- 2.36 0.050 / 0.070 G27 37.7 10.2 5.0 +/- 1.96 13.9 +/- 1.96 0.060 / 0.070 G28 270.7 50.9 4.1 +/- 1.35 5.1 +/- 1.35 0.030 / 0.040 G30 327.6 56.6 1.8 +/- 1.16 2.1 +/- 1.16 0.030 / 0.040